USA Primary Fog Signals Google Map

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USA Primary Fog Signals Google Map - 1950

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1950	1951	1952	1953	1954	1955	1956	1957	1958	1959	1960	1961	1962	1963	1964	1965	1966	1967	1968	1969
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1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004

	103	- Bell
	75	- Diaphone
	95	- Horn
	20	- Siren
	3	- Whistle

Light Stations with Fog Signals

1	Cape Decision	AK	HORN, diaphragm, air; group of 2 blasts every 30 sec., blast 3 sec., silent 3 sec., blast 3 sec., silent 21 sec.	N56 00.084	W134 08.214
2	Cape Hinchinbrook	AK	DIAPHONE, two-tone, air; blast 5 sec., silent 40 sec.	N60 14.250	W146 38.800
3	Cape Sarichef	AK	SIREN, 1st-cl. air; group of 2 blasts every 60 sec.; blast 3 sec., silent 5 sec. blast 3 sec., silent 49 sec.	N54 35.950	W164 55.817
4	Cape Spencer	AK	DIAPHONE; two-tone, air; blast 4 sec., silent 26 sec.	N58 11.904	W136 38.400
5	Cape St. Elias	AK	SIREN, air; group of 2 blasts every 60 sec.: Blast 4 sec., silent 4 sec. blast 4 sec., silent 48 sec.	N59 47.904	W144 35.934
6	Eldred Rock	AK	DIAPHONE, two-tone, air; blast 3 sec., silent 27 sec.	N58 58.302	W135 13.260
7	Five Finger Islands	AK	DIAPHONE, air: Blast 5 sec., silent 25 sec.	N57 16.170	W133 37.866
8	Guard Island	AK	DIAPHONE, air; blast 5 sec., silent 25 sec.	N55 26.760	W131 52.872
9	Lincoln Rock	AK	DIAPHONE, air; blast 3 sec., silent 27 sec.	N56 03.500	W132 41.382
10	Mary Island	AK	DIAPHONE, air; group of 2 blasts every 30 sec.; blast 3 sec., silent 3 sec., blast 3 sec., silent 21 sec.	N55 05.910	W131 11.016
11	Point Retreat	AK	DIAPHONE, air; group of 2 blasts every 30 sec.: Blast 3 sec., silent 3 sec., blast 3 sec, silent 21 sec.	N58 24.660	W134 57.294
12	Sentinel Island	AK	DIAPHONE, air; blast 5 sec., silent 25 sec.	N58 32.784	W134 55.386
13	Tree Point	AK	DIAPHONE, two-tone, air; blast 4 sec., silent 26 sec.	N54 48.126	W130 56.034
14	Alcatraz Island	CA	HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec, blast 2 sec., silent 24 sec.	N37 49.572	W122 25.332
15	Anacapa Island	CA	DIAPHONE, two-tone, air; blast 3 sec., silent 27 sec.	N34 00.954	W119 21.570
16	Angel Island	CA	BELL; group of 2 strokes every 15 sec.	N37 51.372	W122 26.554
17	Ballast Point	CA	DIAPHONE, air, blast 1.5 sec., silent 13.5 sec.	N32 41.175	W117 14.000
18	East Brother Island	CA	DIAPHONE, two-tone, air; blast 3 sec., silent 17 sec.	N37 57.792	W122 26.016
19	Farallon Island	CA	DIAPHONE, air; 1 blast and group of 2 blasts "12" every 60 sec.; blast 2 sec., silent 4 sec., blast 2 sec., silent 1 sec., blast 2 sec., silent 49 sec.	N37 41.946	W123 00.108
20	Lime Point	CA	HORN, diaphragm, chime, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec, blast 4 sec., silent 22 sec. Horn sounds 5 or 6 short blasts and blast of 15 sec. to warn Coast Guard when vessels are in distress.	N37 49.530	W122 28.716
21	Long Beach	CA	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N33 43.392	W118 11.208
22	Los Angeles Harbor	CA	DIAPHONE, two-tone, air; group of 2 blasts every 30 sec., blast 2 sec., silent 2 sec., blast 2 sec., silent 24 sec.	N33 42.516	W118 15.090
23	Mile Rocks	CA	DIAPHONE, air; blast 3 sec., silent 27 sec. Diaphone sounds 5 or 6 short blasts and blast of 15 sec. to warn Coast Guard when vessels are in distress.	N37 47.562	W122 30.612
24	Oakland Harbor	CA	DIAPHONE, air; blast 2 sec., silent 13 sec.	N37 48.013	W122 19.807
25	Piedras Blancas	CA	DIAPHONE, air, two-tone; blast 3 sec., silent 27 sec.	N35 39.942	W121 17.064
26	Pigeon Point	CA	DIAPHONE, air, two-tone; group of 2 blasts every 30 sec.; blast 2 sec., silent 6 sec., blast 2 sec., silent 20 sec.	N37 10.908	W122 23.640
27	Point Arena	CA	DIAPHONE, two-tone, air; group of 2 blasts every 60 sec.; blast 3 sec., silent 1 sec., blast 2 sec., silent 54 sec.	N38 57.276	W123 44.436
28	Point Arguello	CA	DIAPHONE, two-tone, air; blast every 20 sec., blast 2 sec., silent 28 sec.	N34 34.626	W120 38.838
29	Point Blunt	CA	HORN, diaphragm, air; blast 2 sec., silent 13 sec.	N37 51.192	W122 25.146
30	Point Bonita	CA	DIAPHONE, two-tone, air; group 2 unequal blasts every 30 sec. Blast 1 sec., silent 2 sec., blast 2 sec., silent 25 sec.	N37 48.936	W122 31.776
31	Point Cabrillo	CA	DIAPHONE, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec. blast 2 sec., silent 24 sec.	N39 20.922	W123 49.572
32	Point Conception	CA	DIAPHONE, two-tone, air; group 2 blasts every 60 sec. Blast 3 sec., silent 4 sec., blast 3 sec., silent 50 sec.	N34 26.922	W120 28.242
33	Point Diablo	CA	SIREN, electric; group of 2 blasts every 30 sec.; blast 4 sec., silent 2 sec. blast 4 sec., silent 20 sec.	N37 49.207	W122 29.970
34	Point Hueneme	CA	DIAPHONE, air; blast 4 sec., silent 41 sec.	N34 08.712	W119 12.600
35	Point Loma (New)	CA	DIAPHONE, two-tone, air; blast 3 sec., silent 17 sec.	N32 39.900	W117 14.562
36	Point Montara	CA	DIAPHONE, air, two-tone; group of 2 blasts every 30 sec.; blast 3 sec., silent 1 sec., blast 1 sec., silent 25 sec.	N37 32.190	W122 31.158
37	Point Pi�os	CA	HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec. blast 2 sec., silent 24 sec. 447 yards 336° from lighthouse.	N36 38.004	W121 56.022
38	Point Reyes	CA	DIAPHONE, two-tone, air; blast 5 sec., silent 40 sec. Diaphone sounds 5 or 6 short blasts and blast of 15 sec. to warn Coast Guard when vessels are in distress.	N37 59.730	W123 01.398
39	Point Stuart	CA	HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec, blast 2 sec., silent 24 sec.	N37 51.658	W122 26.737
40	Point Sur	CA	DIAPHONE, air, group of 2 blasts every 60 sec., blast 2 sec., silent 1 sec., blast 3 sec., silent 54 sec.	N36 18.378	W121 54.090
41	Point Vicente	CA	WHISTLE, air, chime; group of 2 blasts every 60 sec. Blast 1 sec., silent 2 sec., blast 4 sec., silent 53 sec.	N33 44.514	W118 24.648
42	San Luis Obispo	CA	DIAPHONE, two-tone, air; group of 2 blasts every 30 sec. Blast 2 sec., silent 2 sec., blast 2 sec., silent 24 sec.	N35 09.624	W120 45.666
43	Southampton Shoals	CA	DIAPHONE, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 6 sec., blast 2 sec., silent 20 sec.	N37 52.900	W122 24.000
44	St. George Reef	CA	DIAPHONE, two-tone, air; group of 2 blasts every 45 sec.; blast 2 sec., silent 3 sec. blast 2 sec., silent 38 sec.	N41 50.220	W124 22.518
45	Table Bluff	CA	DIAPHONE, air; blast 4 sec., silent 26 sec. Diaphone sounds 5 or 6 short blasts and blast of 15 sec. to warn Coast Guard when vessels are in distress.	N40 41.705	W124 16.532
46	Trinidad Head	CA	HORN, diaphragm, air; blast 1.5 sec., silent 13.5 sec.	N41 03.125	W124 09.090
47	Yerba Buena Island	CA	DIAPHONE, air; blast 3 sec., silent 17 sec.	N37 48.438	W122 21.738
48	Bridgeport Harbor	CT	BELL; 1 stroke every 15 sec.	N41 09.400	W073 10.800
49	Cornfield Point Lightship	CT	DIAPHONE, two-tone, air; blast 2 sec., silent 13 sec.	N41 12.900	W072 22.200
50	Faulkner's Island	CT	HORN, diaphragm, air; group of 2 blasts every 20 sec., blast 2 sec., silent 2 sec., blast 2 sec., silent 14 sec.	N41 12.726	W072 39.216
51	Great Captain Island	CT	HORN, diaphragm, air; blast 2 sec., silent 13 sec.	N40 58.950	W073 37.416
52	Greens Ledge	CT	HORN, diaphragm, air; group of 2 blasts every 20 sec.: blast 1 sec., silent 4 sec., blast 1 sec., silent 14 sec.	N41 02.502	W073 26.634
53	Lynde Point	CT	BELL, electric; 1 stroke every 12 sec.	N41 16.290	W072 20.592
54	New London Ledge	CT	HORN, diaphragm, air: blast 3 sec., silent 17 sec.	N41 18.360	W072 04.644
55	Penfield Reef	CT	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N41 07.026	W073 13.320
56	Saybrook Breakwater	CT	HORN, diaphragm, air; blast 2 sec., silent 18 sec.	N41 15.798	W072 20.568
57	Southwest Ledge	CT	HORN, diaphragm, air: blast 3 sec., silent 17 sec.	N41 14.070	W072 54.720
58	Stamford Harbor	CT	HORN, diaphragm, air; blast 2 sec., silent 18 sec.	N41 00.822	W073 32.550
59	Stratford Point	CT	HORN, diaphragm, air; group of 2 blasts every 30 sec.: blast 2 sec., silent 3 sec., blast 2 sec., silent 23 sec.	N41 09.120	W073 06.204
60	Stratford Shoal	CT	SIREN, 1st-cl. air; blast 2 sec., silent 13 sec.	N41 03.582	W073 06.078
61	Tongue Point	CT	BELL; 1 stroke every 20 sec.	N41 09.998	W073 10.650
62	Delaware Breakwater East End	DE	HORN, air; blast 2 sec., silent 13 sec.	N38 47.832	W075 06.000
63	Fourteen Foot Bank	DE	DIAPHONE, air; blast 3 sec., silent 27 sec.	N39 02.892	W075 10.932
64	Harbor of Refuge	DE	SIREN, 1st-cl. air: group of 3 blasts every 45 sec.: 3 blasts 2 sec. each, 2 silences 2 sec. each, 1 silence 35 sec.	N38 48.876	W075 05.544
65	Overfalls Lightship	DE	DIAPHONE, two-tone, air; 2 blasts every 20 sec., blast 1.5 secs., silent 3 sec., blast 1.5 secs., silent 14 sec.	N38 47.100	W075 00.700
66	Egmont Key	FL	DIAPHONE, air; blast 4 sec., silent 26 sec.	N27 36.048	W082 45.642
67	St. Johns Lightship	FL	HORN, diaphragm, air; blast 5 sec., silent 25 sec.	N30 23.500	W081 18.000
68	Savannah Lightship	GA	HORN, diaphragm, air; blast 2 sec., silent 18 sec.	N31 56.600	W080 39.800
69	Cubits Gap	LA	SIREN, electric; blast 5 sec., silent 15 sec.	N29 11.502	W089 15.834
70	Point au Fer Reef	LA	BELL; 1 stroke every 20 sec.	N29 22.300	W091 23.100
71	Sabine Pass East Jetty	LA	DIAPHONE, air; blast 2 sec., silent 18 sec.	N29 38.676	W093 49.367
72	South Pass East Jetty	LA	BELL; one stroke every 10 sec. (CO₂).	N28 59.382	W089 08.190
73	South Pass West Jetty	LA	DIAPHONE, air, blast 2 sec., silent 18 sec.	N28 59.502	W089 08.412
74	Annisquam Harbor	MA	SIREN, electric, blast 5 sec., silent 55 sec.	N42 39.714	W070 40.890
75	Baker's Island (Southeastern)	MA	SIREN, 1st-cl. air: blasts 3 sec., silent 27 sec.	N42 32.190	W070 47.154
76	Borden Flats	MA	BELL; 1 stroke every 15 sec.	N41 42.270	W071 10.464
77	Boston Lightship	MA	DIAPHONE, two-tone, air; blast 3 sec., silent 17 sec.	N42 20.400	W070 45.500
78	Boston	MA	SIREN, 1st-cl. air; group of 2 blasts every 60 sec.: blast 3 sec., silent 3 sec., blast 3 sec., silent 51 sec.	N42 19.674	W070 53.406
79	Brant Point	MA	BELL: group of 2 strokes, silent 30 sec., 1 stroke, silent 30 sec.	N41 17.394	W070 05.418
80	Butler Flats	MA	HORN, diaphragm, air; blast 3 sec., silent 12 sec.	N41 36.228	W070 53.670
81	Cape Ann	MA	DIAPHONE, air; group of 3 blasts every 60 sec.: 3 blasts 3 sec. each, 2 silences 3 sec. each, 1 silence 45 sec.	N42 38.208	W070 34.500
82	Cleveland East Ledge	MA	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N41 37.860	W070 41.652
83	Cross Rip Lightship	MA	HORN, diaphragm, air; blast 3 sec., silent 12 sec.	N41 26.800	W070 17.500
84	Deer Island	MA	BELL; 1 stroke every 10 sec.	N42 20.388	W070 57.270
85	Dumpling Rock	MA	SIREN, electric; blast 4 sec., silent 26 sec.	N41 32.286	W070 55.284
86	Duxbury Pier	MA	BELL; 1 stroke every 15 sec.	N41 59.244	W070 38.916
87	Eastern Point	MA	BELL; group of 2 strokes every 20 sec.	N42 34.818	W070 39.870
88	Edgartown Harbor	MA	BELL, electric, 1 stroke every 10 sec.	N41 23.454	W070 30.186
89	Gloucester Breakwater	MA	BELL; 1 stroke every 10 sec.	N42 34.956	W070 40.344
90	Graves	MA	HORN, diaphragm, air; group of 2 blasts every 20 sec.; blast 1.5 sec., silent 3 sec., blast 1.5 sec., silent 14 sec.	N42 21.906	W070 52.152
91	Handkerchief Shoal Lightship	MA	HORN, diaphragm, air; blast 4 sec., silent 26 sec.	N41 29.200	W070 04.000
92	Hen and Chickens Lightship	MA	HORN, diaphragm, chime, air; blast 3 sec., silent 12 sec.	N41 27.000	W071 01.100
93	Highland	MA	HORN, diaphragm, electric; blast 3 sec., silent 12 sec.	N42 02.350	W070 03.621
94	Long Point	MA	BELL; 1 stroke, silent 30 sec., group of 2 strokes, silent 30 sec.	N42 01.992	W070 10.116
95	Nantucket Shoals Lightship	MA	DIAPHONE, two-tone, air; blast 3 sec., silent 12 sec.	N40 37.000	W069 18.500
96	Narrows	MA	BELL; 1 stroke every 20 sec.	N42 19.344	W070 55.182
97	Nobska Point	MA	HORN, diaphragm air; group of 3 blasts every 30 sec.: 3 blasts 2 sec. each, 2 silences 1 sec. each, 1 silence 22 sec.	N41 30.948	W070 39.306
98	Palmer Island	MA	BELL, electric; 1 stroke every 10 sec.	N41 37.614	W070 54.546
99	Plymouth (Southeast)	MA	HORN, diaphragm, air: blast 3 sec., silent 12 sec.	N42 00.207	W070 36.038
100	Pollock Rip Lightship	MA	DIAPHONE, air; blast 3.5 sec., silent 26.5 seconds.	N41 36.100	W069 51.100
101	Race Point	MA	WHISTLE, air; group of 2 blasts every 60 sec.; blast 2 sec., silent 4 sec., blast 2 sec., silent 52 sec.	N42 03.738	W070 14.586
102	Stonehorse Shoal Lightship	MA	DIAPHONE, two-tone, air; blast 3 sec., silent 12 sec.	N41 32.800	W069 59.100
103	Ten Pound Island	MA	BELL; group of 2 strokes every 131/2 sec.	N42 36.114	W070 39.936
104	Vineyard Sound Lightship	MA	HORN, diaphragm, steam; blast 3 sec., silent 27 sec.	N41 22.600	W071 00.200
105	West Chop	MA	WHISTLE, air: blast 3 sec., silent 27 sec.	N41 28.848	W070 35.988
106	Wood End	MA	SIREN, electric; blast 4 sec., silent 26 sec.	N42 01.275	W070 11.610
107	Baltimore	MD	BELL, 1 stroke every 30 sec. (CO₂) when ice runs.	N39 03.552	W076 23.940
108	Bloody Point Bar	MD	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N38 49.992	W076 23.484
109	Choptank River	MD	BELL; 1 stroke every 10 sec.	N38 39.342	W076 11.070
110	Cove Point	MD	DIAPHONE, air; blast 3 sec., silent 12 sec.	N38 23.178	W076 22.908
111	Craighill Channel Lower Range Front	MD	HORN, diaphragm, air; blast 3 sec., silent 27 sec.	N39 11.317	W076 23.670
112	Drum Point	MD	BELL, group of 2 strokes every 15 sec.	N38 19.140	W076 25.260
113	Fort Carroll	MD	BELL; 1 stroke every 15 sec. (CO₂).	N39 12.876	W076 31.194
114	Fort Washington	MD	BELL, electric; 1 stroke every 10 sec.	N38 42.738	W077 02.214
115	Great Shoals	MD	BELL; 1 stroke every 15 sec.	N38 12.858	W075 52.764
116	Greenbury Point Shoal	MD	BELL; 1 stroke every 20 sec. (CO₂).	N38 58.080	W076 27.240
117	Holland Island Bar	MD	DIAPHONE, air: group of 2 blasts every 20 sec.; blast 2 sec., silent 2 sec., blast 2 sec., silent 14 sec.	N38 04.122	W076 05.742
118	Hooper Island	MD	HORN, diaphragm, air; blast 3 sec., silent 27 sec.	N38 13.600	W076 04.500
119	Hooper Strait	MD	HORN, diaphragm, air; blast 3 sec., silent 12 sec.	N38 15.400	W076 15.000
120	Janes Island	MD	BELL; 1 stroke every 30 sec. (CO₂).	N37 57.804	W075 55.104
121	Lazaretto Point	MD	BELL, electric; 1 stroke every 8 sec.	N39 15.767	W076 34.300
122	Love Point	MD	HORN, diaphragm, air; blast 2 sec., silent 18 sec.	N39 03.426	W076 16.992
123	Lower Cedar Point	MD	BELL, 1 stroke every 12 sec.	N38 20.406	W076 59.616
124	Maryland Point	MD	BELL; group of 2 strokes every 15 sec.	N38 20.983	W077 11.862
125	Mathias Point Shoal	MD	BELL; 1 stroke, silent 20 sec.; group of 2 strokes, silent 20 sec.	N38 24.312	W077 02.568
126	Piney Point	MD	HORN, diaphragm, air; blast 3 sec., silent 12 sec.	N38 08.118	W076 31.782
127	Point Lookout	MD	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N38 02.328	W076 19.320
128	Point No Point	MD	HORN, diaphragm, air; blast 1.5 sec., silent 13.5 sec.	N38 07.686	W076 17.418
129	Ragged Point	MD	BELL; group of 2 strokes every 10 sec.	N38 09.264	W076 36.084
130	Sandy Point Shoal	MD	HORN, diaphragm, air; blast 3 sec., silent 12 sec.	N39 00.960	W076 23.076
131	Seven Foot Knoll	MD	BELL, electric; 1 stroke every 12 sec.	N39 09.318	W076 24.540
132	Sharkfin Shoal	MD	BELL; group of 2 strokes every 15 sec.	N38 12.132	W075 59.202
133	Sharps Island	MD	HORN, diaphragm, air; group of 2 blasts every 30 sec., blast 1.5 sec., silent 1.5 sec., blast 1.5 sec., silent 25.5 sec.	N38 38.346	W076 22.548
134	Solomons Lump	MD	BELL; 1 stroke every 10 sec.	N38 02.880	W076 00.900
135	Thomas Point Shoal	MD	DIAPHONE, air; blast 2 sec., silent 13 sec.	N38 53.940	W076 26.166
136	Upper Cedar Point	MD	BELL; 1 stroke every 15 sec.	N38 24.156	W077 04.962
137	Bass Harbor Head	ME	BELL, electric; 1 stroke every 10 sec.	N44 13.320	W068 20.232
138	Bear Island	ME	BELL; 1 stroke every 15 sec.	N44 17.010	W068 16.194
139	Boon Island	ME	BELL; hand, answers signals.	N43 07.200	W070 28.620
140	Browns Head	ME	HORN, diaphragm, electronic; group of 2 blasts every 20 sec., blast 1.5 sec., silent 3 sec., blast 1.5 sec., silent 14 sec.	N44 06.708	W068 54.570
141	Burnt Coat Harbor	ME	BELL; 1 stroke every 15 sec.	N44 08.052	W068 26.832
142	Burnt Island	ME	BELL; group of 2 strokes every 60 sec.	N43 49.512	W069 38.412
143	Cape Elizabeth (East Tower)	ME	DIAPHONE, air; group of 3 blasts every 60 sec.: 3 blasts 2 sec. each, 2 silences 2 sec. each, 1 silence 50 sec.	N43 33.966	W070 12.006
144	Cape Neddick	ME	BELL; 1 stroke every 15 sec.	N43 09.912	W070 35.466
145	Cuckolds	ME	HORN, diaphragm, air; blast 2.5 sec., silent 17.5 sec.	N43 46.782	W069 38.994
146	Curtis Island	ME	BELL, electric, 1 stroke every 10 sec.	N44 12.084	W069 02.934
147	Deer Island Thorofare	ME	BELL; group of 2 strokes every 15 sec.	N44 08.065	W068 42.200
148	Doubling Point	ME	BELL; 1 stroke every 15 sec.	N43 52.950	W069 48.402
149	Eagle Island	ME	BELL; 1 stroke every 20 sec.	N44 13.056	W068 46.062
150	Egg Rock	ME	HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 4 sec., silent 2 sec., blast 4 sec., silent 20 sec.	N44 21.246	W068 08.286
151	Fort Point	ME	BELL; 1 stroke every 20 sec.	N44 28.032	W068 48.702
152	Goat Island	ME	BELL; 1 stroke every 20 sec.	N43 21.468	W070 25.506
153	Goose Rocks	ME	BELL; 1 stroke, silent 20 sec., group of 2 strokes, silent 20 sec.	N44 08.124	W068 49.830
154	Great Duck Island	ME	DIAPHONE, air; blast 2.5 sec., silent 17.5 sec.	N44 08.532	W068 14.754
155	Halfway Rock	ME	HORN, diaphragm, air; group of 2 blasts every 60 sec. Blast 3 sec., silent 3 sec., blast 3 sec., silent 51 sec.	N43 39.348	W070 02.214
156	Heron Neck	ME	SIREN; electric, blast 3 sec., silent 27 sec.	N44 01.512	W068 51.714
157	Libby Island	ME	DIAPHONE, air; blast 2 sec., silent 13 sec.	N44 34.092	W067 22.038
158	Little River	ME	BELL, 1 stroke every 30 sec.	N44 39.054	W067 11.538
159	Lubec Channel	ME	BELL, electric; 1 stroke every 10 sec.	N44 50.514	W066 58.584
160	Machias Seal Island	ME	DIAPHONE, air: group of 2 blasts every 60 sec.	N44 30.102	W067 06.102
161	Marshall Point	ME	BELL; 1 stroke every 20 sec.	N43 55.044	W069 15.678
162	Matinicus Rock (South Tower)	ME	DIAPHONE, air; blast 2 sec., silent 13 sec.	N43 47.016	W068 51.336
163	Moose Peak	ME	HORN, diaphragm, air; group of 2 blasts every 30 sec.: blast 1.5 sec., silent 2 sec., blast 1.5 sec., silent 25 sec.	N44 28.464	W067 31.920
164	Mount Desert Rock	ME	HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 1 sec., blast 1 sec., silent 26 sec.	N43 58.110	W068 07.692
165	Owls Head	ME	BELL; 1 stroke every 15 sec.	N44 05.532	W069 02.646
166	Perkins Island	ME	BELL; 1 stroke, silent 15 sec., group of 2 strokes, silent 15 sec.	N43 47.214	W069 47.106
167	Petit Manan	ME	HORN, diaphragm, air; blast 3 sec., silent 27 sec.	N44 22.056	W067 51.846
168	Pond Island	ME	BELL; 1 stroke every 10 sec.	N43 44.400	W069 46.218
169	Portland Lightship	ME	HORN, diaphragm, air; blast 3 sec., silent 27 sec.	N43 31.600	W070 05.500
170	Portland Head	ME	HORN, diaphragm, chime, air; blast 4 sec., silent 16 sec.	N43 37.386	W070 12.474
171	Ram Island	ME	BELL; 1 stroke every 20 sec.	N43 48.240	W069 35.958
172	Ram Island Ledge	ME	BELL; 1 stroke every 10 sec.	N43 37.890	W070 11.238
173	Rockland Breakwater	ME	HORN, diaphragm, air; blast 5 sec., silent 15 sec.	N44 06.240	W069 04.650
174	Saddleback Ledge	ME	BELL; 1 stroke every 10 sec.	N44 00.858	W068 43.584
175	Seguin Island	ME	DIAPHONE, air; group of 2 blasts every 20 sec.: blast 1.5 sec., silent 1 sec., blast 1.5 sec., silent 16 sec.	N43 42.450	W069 45.486
176	Spring Point Ledge	ME	BELL; group of 2 strokes every 12 sec.	N43 39.126	W070 13.434
177	Squirrel Point	ME	BELL; 1 stroke every 15 sec.	N43 48.996	W069 48.144
178	St. Croix River	ME	BELL, 1 stroke every 15 sec.	N45 07.722	W067 08.016
179	Two Bush Island	ME	HORN, diaphragm, air; blast 2 sec., silent 18 sec.	N43 57.864	W069 04.422
180	West Quoddy Head	ME	DIAPHONE, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec. blast 2 sec., silent 24 sec.	N44 48.912	W066 57.030
181	Whaleback Ledge	ME	HORN, diaphragm, chime, air; group of 2 blasts every 30 sec., blast 2 sec., silent 2 sec., blast 2 sec., silent 24 sec.	N43 03.528	W070 41.778
182	Whitehead	ME	HORN, diaphragm, air; group of 2 blasts every 30 sec., blast 2.5 sec., silent 2.5 sec., blast 2.5 sec., silent 22.5 sec.	N43 58.722	W069 07.458
183	Whitlock's Mill	ME	BELL; 1 stroke every 20 sec.	N45 09.768	W067 13.632
184	Wood Island	ME	BELL; 1 stroke, silent 25 sec., group of 2 strokes, silent 25 sec.	N43 27.408	W070 19.740
185	Diamond Shoal Lightship	NC	DIAPHONE, two-tone, air; blast 5 sec., silent 55 sec.	N35 05.300	W075 19.700
186	Frying Pan Shoal Lightship	NC	DIAPHONE, two-tone, air; blast 4 sec., silent 26 sec.	N33 28.000	W077 33.800
187	Isles of Shoals	NH	HORN, diaphragm, air; blast 3 sec., silent 27 sec.	N42 58.032	W070 37.404
188	Portsmouth Harbor	NH	BELL; 1 stroke every 10 sec.	N43 04.266	W070 42.516
189	Ambrose Channel Lightship	NJ	HORN, diaphragm, air; blast 3 sec., silent 12 sec.	N40 27.100	W073 04.400
190	Barnegat Lightship	NJ	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N39 45.000	W073 56.000
191	Bergen Point	NJ	BELL, electric; 1 stroke every 15 sec.	N40 38.583	W074 08.900
192	Brandywine Shoal	NJ	HORN, diaphragm, air: blast 2 sec., silent 13 sec.	N38 59.172	W075 06.792
193	Elbow of Cross Ledge	NJ	HORN, diaphragm, air; group of 2 blasts every 30 sec. Blast 2 sec., silent 1 sec., blast 2 sec., silent 25 sec.	N39 10.897	W075 16.098
194	Five Fathom Bank Lightship	NJ	DIAPHONE, two-tone, air; blast 2-sec., silent 28 sec.	N38 47.300	W074 34.600
195	Miah Maull Shoal	NJ	HORN, diaphragm, air; blast 2 sec., silent 18 sec.	N39 07.584	W075 12.582
196	Sandy Hook East Beacon	NJ	BELL, electric; 1 stroke every 10 sec.	N40 28.250	W074 01.122
197	Scotland Lightship	NJ	HORN, diaphragm, air; group of 2 blasts every 20 sec.; blast 2 sec., silent 2 sec., blast 2 sec., silent 14 sec.	N40 26.600	W073 55.200
198	Ship John Shoal	NJ	HORN, diaphragm, air; blast 2 sec, silent 18 sec.	N39 18.318	W075 22.602
199	Tinicum Island Range Front	NJ	BELL; 1 stroke every 30 sec.	N39 50.867	W075 15.167
200	Cold Spring Harbor	NY	BELL, electric; 2 strokes every 15 sec.	N40 54.852	W073 29.592
201	Coney Island	NY	BELL, electric; 1 stroke every 10 sec.	N40 34.600	W074 00.702
202	Danskammer Point	NY	BELL, electric; 1 stroke every 20 sec.	N41 34.433	W073 57.833
203	Eaton's Neck	NY	SIREN, 1st-cl. air: blast 2 sec., silent 28 sec.	N40 57.240	W073 23.730
204	Esopus Meadows	NY	BELL, electric; 2 strokes every 15 sec.	N41 52.104	W073 56.496
205	Execution Rocks	NY	SIREN, 1st-cl. air: blast 3 sec., silent 17 sec.	N40 52.686	W073 44.262
206	Fort Wadsworth	NY	BELL, electric; 1 stroke every 15 sec.	N40 36.354	W074 03.240
207	Hell Gate	NY	BELL, electric; 1 stroke every 5 sec.	N40 46.680	W073 56.089
208	Hudson-Athens	NY	BELL, electric; 1 stroke every 15 sec.	N42 15.120	W073 48.522
209	Latimer Reef	NY	BELL; 1 stroke every 15 sec.	N41 18.270	W071 55.998
210	Little Gull Island	NY	HORN, diaphragm, air; blast 2 sec., silent 13 sec. One horn points to 90°, and one points to 330°.	N41 12.384	W072 06.408
211	Montauk Point	NY	HORN, diaphragm, air; (2) horns points 30° and 140°, blast 2 sec., silent 13 sec., alternately.	N41 04.260	W071 51.426
212	North Brother Island	NY	BELL; 1 stroke every 15 sec.	N40 47.958	W073 53.976
213	North Dumpling	NY	HORN, diaphragm, air; blast 2 sec., silent 10 sec.	N41 17.274	W072 01.158
214	Old Orchard Shoal	NY	HORN, diaphragm, electric; blast 3 sec., silent 7 sec.	N40 30.744	W074 05.928
215	Orient Point	NY	HORN, diaphragm, air; group of 3 blasts every 30 sec., 3 blasts 2 sec. each, 2 silences 4 sec. each, 1 silence 16 sec.	N41 09.810	W072 13.416
216	Plum Island	NY	SIREN, electric; blast 4 sec., silent 11 sec.	N41 10.422	W072 12.690
217	Port Jefferson Harbor Breakwater	NY	BELL; 1 stroke every 20 sec.	N40 58.338	W073 05.495
218	Race Rock	NY	SIREN, 1st-cl. air; group of 2 blasts every 30 sec.: blast 2 sec., silent 1 sec., blast 2 sec., silent 25 sec.	N41 14.604	W072 02.820
219	Robbins Reef	NY	HORN, diaphragm, electric; blast 2 sec., silent 8 sec.	N40 39.444	W074 03.924
220	Rockland Lake	NY	BELL, electric; 1 stroke every 15 sec.	N41 08.840	W073 54.287
221	Romer Shoal	NY	DIAPHONE, air; blast 2 sec., silent 13 sec.	N40 30.774	W074 00.810
222	Rondout Creek	NY	BELL, electric; 1 stroke every 15 sec.	N41 55.248	W073 57.744
223	Saugerties	NY	BELL, electric; 1 stroke every 5 sec.	N42 04.326	W073 55.776
224	Shinnecock Bay	NY	SIREN, electric; blast 4 sec., silent 11 sec.	N40 50.523	W072 28.695
225	Stepping Stones	NY	BELL; group of 2 strokes every 20 sec.	N40 49.458	W073 46.476
226	Stony Point (Hudson River)	NY	BELL, electric; 1 stroke every 15 sec.	N41 14.460	W073 58.156
227	Tarrytown	NY	BELL, electric; 1 stroke every 20 sec.	N41 05.046	W073 52.452
228	Throgs Neck	NY	BELL, electric; 1 stroke every 10 sec.	N40 48.276	W073 47.442
229	West Bank	NY	HORN, diaphragm, electric, group of 2 blasts every 15 sec.: blast 2 sec., silent 2 sec., blast 2 sec., silent 9 sec.	N40 32.280	W074 02.574
230	West Point	NY	BELL, electric; 1 stroke every 20 sec. Operates automatically only by a blast of a ships' whistle.	N41 23.765	W073 57.068
231	Whitestone Point	NY	BELL, electric; group of 2 strokes every 20 sec.	N40 48.084	W073 49.176
232	Cape Arago	OR	HORN, chime diaphragm, air; group of 2 unequal blasts every 60 sec.. Blast 5 sec., silent 12 sec., blast 3 sec., silent 40 sec.	N43 20.472	W124 22.524
233	Desdemona Sands	OR	BELL, electric; 2 strokes every 30 sec.	N46 13.542	W123 57.306
234	Tillamook	OR	SIREN, 1st-cl. air: Blast 5 sec., silent 40 sec.	N45 56.232	W124 01.146
235	Warrior Rock	OR	BELL, electric; 1 stroke every 15 sec., operates continuously.	N45 50.916	W122 47.304
236	Beavertail	RI	SIREN, 1st-cl. air; blast 3 sec., silent 27 sec.	N41 26.964	W071 23.970
237	Block Island Southeast	RI	HORN, diaphragm, air; blast 5 sec., silent 25 sec.	N41 09.204	W071 33.126
238	Brenton Reef Lightship	RI	DIAPHONE, air; blast 6 sec., silent 24 sec.	N41 25.600	W071 22.600
239	Bullock's Point	RI	BELL, electric; one stroke every 15 sec.	N41 44.263	W071 21.852
240	Castle Hill	RI	BELL; group of 2 strokes every 20 sec.	N41 27.732	W071 21.774
241	Conimicut	RI	BELL; 1 stroke every 15 sec.	N41 43.020	W071 20.706
242	Gould's Island	RI	HORN, diaphragm, air; blast 4 sec., silent 26 sec.	N41 32.050	W071 20.617
243	Great Salt Pond Breakwater Outer Beacon	RI	HORN, diaphragm, air: blast 3 sec., silent 7 sec.	N41 11.958	W071 35.591
244	Gull Rocks	RI	BELL; 1 stroke every 20 sec.	N41 30.150	W071 19.983
245	Hog Island Shoal	RI	SIREN, electric: blast 3 sec., silent 10 sec.	N41 37.944	W071 16.392
246	Newport Harbor	RI	BELL; 1 stroke every 10 sec.	N41 29.598	W071 19.626
247	Point Judith	RI	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N41 21.660	W071 28.884
248	Pomham Rocks	RI	BELL; group of 2 strokes every 20 sec.	N41 46.656	W071 22.170
249	Prudence Island	RI	BELL; 1 stroke every 15 sec.	N41 36.354	W071 18.210
250	Rose Island	RI	HORN, 2d-cl. reed: blast 2 sec., silent 13 sec.	N41 29.730	W071 20.562
251	Sabin Point	RI	BELL, electric; 2 strokes every 15 sec.	N41 45.733	W071 22.550
252	Sakonnet	RI	HORN, diaphragm, air; blast 3 sec., silent 12 sec.	N41 27.192	W071 12.150
253	Warwick	RI	HORN, diaphragm, air: blast 3 sec., silent 12 sec.	N41 40.026	W071 22.704
254	Watch Hill	RI	HORN, diaphragm, electric; blast 3 sec., silent 27 sec.	N41 18.234	W071 51.516
255	Galveston Jetty	TX	DIAPHONE, air; blast 2 sec., silent 18 sec.	N29 19.674	W094 41.562
256	Bowlers Rock	VA	BELL; 1 stroke every 20 sec. (CO₂).	N37 49.470	W076 43.962
257	Cape Henry	VA	DIAPHONES, 2, air: Horns point 77° and 333°, blast 2 sec., silent 18 sec.	N36 55.584	W076 00.438
258	Cherrystone Bar	VA	BELL; 1 stroke every 20 sec. (CO₂).	N37 15.384	W076 01.944
259	Chesapeake Lightship	VA	DIAPHONE, two-tone, air; blast 3 sec., silent 27 sec.	N36 58.700	W075 42.200
260	Craney Island	VA	BELL; 1 stroke every 30 sec. (CO₂).	N36 53.520	W076 20.220
261	Deep Water Shoals	VA	BELL, 1 stroke every 15 sec.	N37 08.934	W076 38.208
262	Great Wicomico River	VA	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N37 48.258	W076 16.056
263	Newport News Middle Ground	VA	BELL; group of 2 strokes every 15 sec.	N36 56.712	W076 23.490
264	Old Plantation Flats	VA	DIAPHONE, air; blast 3 sec., silent 17 sec.	N37 13.728	W076 02.814
265	Old Point Comfort	VA	BELL, electric; 1 stroke every 10 sec.	N37 00.108	W076 18.390
266	Pages Rock	VA	BELL; 1 stroke every 15 sec.	N37 18.654	W076 35.196
267	Smith Point	VA	DIAPHONE, air; blast 3 sec., silent 12 sec.	N37 52.812	W076 10.998
268	Stingray Point	VA	BELL; 1 stroke, silent 71/2 sec., 1 stroke, silent 30 sec.	N37 33.700	W076 16.383
269	Tangier Sound	VA	HORN, diaphragm, air; blast 3 sec., silent 17 sec.	N37 47.286	W075 58.428
270	Thimble Shoal	VA	DIAPHONE, air; blast 2 sec., silent 8 sec.	N37 00.876	W076 14.394
271	Tue Marshes	VA	HORN, diaphragm, air, blast 2 sec., silent 13 sec.	N37 14.136	W076 23.148
272	Windmill Point	VA	BELL; 1 stroke every 10 sec.	N37 35.808	W076 14.154
273	Winter Quarter Shoal Lightship	VA	DIAPHONE, two-tone, air; blast 3 sec., silent 57 sec.	N37 55.500	W074 56.400
274	Wolf Trap	VA	DIAPHONE, air; blast 3 sec., silent 7 sec.	N37 23.424	W076 11.382
275	York Spit	VA	DIAPHONE, air; blast 3 sec.; silent 17 sec.	N37 12.583	W076 15.250
276	Alki Point	WA	HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 3 sec., silent 6 sec., blast 3 sec., silent 18 sec.	N47 34.578	W122 25.236
277	Browns Point	WA	HORN, diaphragm, air; group of 3 blasts every 30 sec., blast 3 sec., silent 2 sec., blast 3 sec., silent 2 sec., blast 3 sec., silent 17 sec.	N47 18.354	W122 26.658
278	Burrows Island	WA	HORN, 3d-cl. reed, air; group of 2 blasts every 40 sec.; blast 4 sec., silent 7 sec., blast 4 sec., silent 25 sec.	N48 28.680	W122 42.810
279	Bush Point	WA	HORN, diaphragm,air; blast 5 sec., silent 25 sec.	N48 01.854	W122 36.426
280	Cape Flattery	WA	DIAPHONE, air; group of 2 unequal blasts every 60 sec.; blast 5 sec., silent 15 sec, blast 3 sec., silent 37 sec.	N48 23.496	W124 44.196
281	Destruction Island	WA	DIAPHONE, air; blast 4 sec., silent 26 sec.	N47 40.470	W124 29.220
282	Dofflemyer Point	WA	HORN, diaphragm, air; blast 5 sec., silent 10 sec.	N47 08.436	W122 54.450
283	Ediz Hook	WA	HORNS, diaphragm, air (2); sound simultaneously, blast 5 sec., silent 40 sec. 602 yards 94° from light tower.	N48 08.406	W123 24.714
284	Grays Harbor	WA	DIAPHONE, air; group of 3 blasts every 60 sec.; blast 2 sec., silent 1 sec., blast 2 sec., silent 25 sec, blast 2 sec., silent 28 sec.	N46 53.292	W124 07.014
285	Lime Kiln	WA	HORN, diaphragm, air; group 2 blasts every 20 sec.; blast 2 sec., silent 4 sec., blast 2 sec., silent 12 sec.	N48 30.948	W123 09.156
286	Marrowstone Point	WA	HORN, (2), diaphragm, air; groups of 3 blasts every 30 sec., 3 blasts 2 sec. each, 2 silences 2 sec. each, 1 silence 20 sec.	N48 06.096	W122 41.268
287	Mukilteo	WA	HORN, 3d-cl. reed, air; blast 4 sec., silent 16 sec.	N47 56.922	W122 18.378
288	New Dungeness	WA	DIAPHONE, two-tone, air; blast 2 sec., silent 18 sec.	N48 10.902	W123 06.612
289	Patos Island	WA	DIAPHONE, air; blast 3 sec., silent 27 sec.	N48 47.340	W122 58.266
290	Point No Point	WA	HORN, 3d-cl. reed, air; groups of 2 blasts every 30 sec., blast 3 sec., silent 3 sec., blast 3 sec., silent 21 sec.	N47 54.733	W122 31.608
291	Point Robinson	WA	HORN, diaphragm, air; blast 4 sec., silent 16 sec.	N47 23.286	W122 22.464
292	Point Wilson	WA	HORN: chime diaphragm air; blast 4 sec., silent 26 sec.	N48 08.652	W122 45.282
293	Semiahmoo Harbor	WA	HORN, diaphragm,air; blast 3 sec., silent 17 sec.	N48 59.556	W122 46.932
294	Slip Point	WA	DIAPHONE, air; blast 3 sec., silent 27 sec.	N48 15.870	W124 15.060
295	Turn Point	WA	HORN, diaphragm, air; group 2 unequal blasts every 30 sec.; blast 4 sec., silent 4 sec., blast 2 sec., silent 20 sec.	N48 41.322	W123 14.232
296	West Point	WA	HORN, diaphragm, air; blast 3 sec., silent 27 sec.	N47 39.720	W122 26.142

Cape Decision

HORN, diaphragm, air; group of 2 blasts every 30 sec., blast 3 sec., silent 3 sec., blast 3 sec., silent 21 sec.

N56 00.084

W134 08.214

Cape Hinchinbrook

DIAPHONE, two-tone, air; blast 5 sec., silent 40 sec.

N60 14.250

W146 38.800

Cape Sarichef

SIREN, 1st-cl. air; group of 2 blasts every 60 sec.; blast 3 sec., silent 5 sec. blast 3 sec., silent 49 sec.

N54 35.950

W164 55.817

Cape Spencer

DIAPHONE; two-tone, air; blast 4 sec., silent 26 sec.

N58 11.904

W136 38.400

Cape St. Elias

SIREN, air; group of 2 blasts every 60 sec.: Blast 4 sec., silent 4 sec. blast 4 sec., silent 48 sec.

N59 47.904

W144 35.934

Eldred Rock

DIAPHONE, two-tone, air; blast 3 sec., silent 27 sec.

N58 58.302

W135 13.260

Five Finger Islands

DIAPHONE, air: Blast 5 sec., silent 25 sec.

N57 16.170

W133 37.866

Guard Island

DIAPHONE, air; blast 5 sec., silent 25 sec.

N55 26.760

W131 52.872

Lincoln Rock

DIAPHONE, air; blast 3 sec., silent 27 sec.

N56 03.500

W132 41.382

Mary Island

DIAPHONE, air; group of 2 blasts every 30 sec.; blast 3 sec., silent 3 sec., blast 3 sec., silent 21 sec.

N55 05.910

W131 11.016

Point Retreat

DIAPHONE, air; group of 2 blasts every 30 sec.: Blast 3 sec., silent 3 sec., blast 3 sec, silent 21 sec.

N58 24.660

W134 57.294

Sentinel Island

DIAPHONE, air; blast 5 sec., silent 25 sec.

N58 32.784

W134 55.386

Tree Point

DIAPHONE, two-tone, air; blast 4 sec., silent 26 sec.

N54 48.126

W130 56.034

Alcatraz Island

HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec, blast 2 sec., silent 24 sec.

N37 49.572

W122 25.332

Anacapa Island

DIAPHONE, two-tone, air; blast 3 sec., silent 27 sec.

N34 00.954

W119 21.570

Angel Island

BELL; group of 2 strokes every 15 sec.

N37 51.372

W122 26.554

Ballast Point

DIAPHONE, air, blast 1.5 sec., silent 13.5 sec.

N32 41.175

W117 14.000

East Brother Island

DIAPHONE, two-tone, air; blast 3 sec., silent 17 sec.

N37 57.792

W122 26.016

Farallon Island

DIAPHONE, air; 1 blast and group of 2 blasts "12" every 60 sec.; blast 2 sec., silent 4 sec., blast 2 sec., silent 1 sec., blast 2 sec., silent 49 sec.

N37 41.946

W123 00.108

Lime Point

HORN, diaphragm, chime, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec, blast 4 sec., silent 22 sec. Horn sounds 5 or 6 short blasts and blast of 15 sec. to warn Coast Guard when vessels are in distress.

N37 49.530

W122 28.716

Long Beach

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N33 43.392

W118 11.208

Los Angeles Harbor

DIAPHONE, two-tone, air; group of 2 blasts every 30 sec., blast 2 sec., silent 2 sec., blast 2 sec., silent 24 sec.

N33 42.516

W118 15.090

Mile Rocks

DIAPHONE, air; blast 3 sec., silent 27 sec. Diaphone sounds 5 or 6 short blasts and blast of 15 sec. to warn Coast Guard when vessels are in distress.

N37 47.562

W122 30.612

Oakland Harbor

DIAPHONE, air; blast 2 sec., silent 13 sec.

N37 48.013

W122 19.807

Piedras Blancas

DIAPHONE, air, two-tone; blast 3 sec., silent 27 sec.

N35 39.942

W121 17.064

Pigeon Point

DIAPHONE, air, two-tone; group of 2 blasts every 30 sec.; blast 2 sec., silent 6 sec., blast 2 sec., silent 20 sec.

N37 10.908

W122 23.640

Point Arena

DIAPHONE, two-tone, air; group of 2 blasts every 60 sec.; blast 3 sec., silent 1 sec., blast 2 sec., silent 54 sec.

N38 57.276

W123 44.436

Point Arguello

DIAPHONE, two-tone, air; blast every 20 sec., blast 2 sec., silent 28 sec.

N34 34.626

W120 38.838

Point Blunt

HORN, diaphragm, air; blast 2 sec., silent 13 sec.

N37 51.192

W122 25.146

Point Bonita

DIAPHONE, two-tone, air; group 2 unequal blasts every 30 sec. Blast 1 sec., silent 2 sec., blast 2 sec., silent 25 sec.

N37 48.936

W122 31.776

Point Cabrillo

DIAPHONE, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec. blast 2 sec., silent 24 sec.

N39 20.922

W123 49.572

Point Conception

DIAPHONE, two-tone, air; group 2 blasts every 60 sec. Blast 3 sec., silent 4 sec., blast 3 sec., silent 50 sec.

N34 26.922

W120 28.242

Point Diablo

SIREN, electric; group of 2 blasts every 30 sec.; blast 4 sec., silent 2 sec. blast 4 sec., silent 20 sec.

N37 49.207

W122 29.970

Point Hueneme

DIAPHONE, air; blast 4 sec., silent 41 sec.

N34 08.712

W119 12.600

Point Loma (New)

DIAPHONE, two-tone, air; blast 3 sec., silent 17 sec.

N32 39.900

W117 14.562

Point Montara

DIAPHONE, air, two-tone; group of 2 blasts every 30 sec.; blast 3 sec., silent 1 sec., blast 1 sec., silent 25 sec.

N37 32.190

W122 31.158

Point Pi�os

HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec. blast 2 sec., silent 24 sec. 447 yards 336° from lighthouse.

N36 38.004

W121 56.022

Point Reyes

DIAPHONE, two-tone, air; blast 5 sec., silent 40 sec. Diaphone sounds 5 or 6 short blasts and blast of 15 sec. to warn Coast Guard when vessels are in distress.

N37 59.730

W123 01.398

Point Stuart

HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec, blast 2 sec., silent 24 sec.

N37 51.658

W122 26.737

Point Sur

DIAPHONE, air, group of 2 blasts every 60 sec., blast 2 sec., silent 1 sec., blast 3 sec., silent 54 sec.

N36 18.378

W121 54.090

Point Vicente

WHISTLE, air, chime; group of 2 blasts every 60 sec. Blast 1 sec., silent 2 sec., blast 4 sec., silent 53 sec.

N33 44.514

W118 24.648

San Luis Obispo

DIAPHONE, two-tone, air; group of 2 blasts every 30 sec. Blast 2 sec., silent 2 sec., blast 2 sec., silent 24 sec.

N35 09.624

W120 45.666

Southampton Shoals

DIAPHONE, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 6 sec., blast 2 sec., silent 20 sec.

N37 52.900

W122 24.000

St. George Reef

DIAPHONE, two-tone, air; group of 2 blasts every 45 sec.; blast 2 sec., silent 3 sec. blast 2 sec., silent 38 sec.

N41 50.220

W124 22.518

Table Bluff

DIAPHONE, air; blast 4 sec., silent 26 sec. Diaphone sounds 5 or 6 short blasts and blast of 15 sec. to warn Coast Guard when vessels are in distress.

N40 41.705

W124 16.532

Trinidad Head

HORN, diaphragm, air; blast 1.5 sec., silent 13.5 sec.

N41 03.125

W124 09.090

Yerba Buena Island

DIAPHONE, air; blast 3 sec., silent 17 sec.

N37 48.438

W122 21.738

Bridgeport Harbor

BELL; 1 stroke every 15 sec.

N41 09.400

W073 10.800

Cornfield Point Lightship

DIAPHONE, two-tone, air; blast 2 sec., silent 13 sec.

N41 12.900

W072 22.200

Faulkner's Island

HORN, diaphragm, air; group of 2 blasts every 20 sec., blast 2 sec., silent 2 sec., blast 2 sec., silent 14 sec.

N41 12.726

W072 39.216

Great Captain Island

HORN, diaphragm, air; blast 2 sec., silent 13 sec.

N40 58.950

W073 37.416

Greens Ledge

HORN, diaphragm, air; group of 2 blasts every 20 sec.: blast 1 sec., silent 4 sec., blast 1 sec., silent 14 sec.

N41 02.502

W073 26.634

Lynde Point

BELL, electric; 1 stroke every 12 sec.

N41 16.290

W072 20.592

New London Ledge

HORN, diaphragm, air: blast 3 sec., silent 17 sec.

N41 18.360

W072 04.644

Penfield Reef

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N41 07.026

W073 13.320

Saybrook Breakwater

HORN, diaphragm, air; blast 2 sec., silent 18 sec.

N41 15.798

W072 20.568

Southwest Ledge

HORN, diaphragm, air: blast 3 sec., silent 17 sec.

N41 14.070

W072 54.720

Stamford Harbor

HORN, diaphragm, air; blast 2 sec., silent 18 sec.

N41 00.822

W073 32.550

Stratford Point

HORN, diaphragm, air; group of 2 blasts every 30 sec.: blast 2 sec., silent 3 sec., blast 2 sec., silent 23 sec.

N41 09.120

W073 06.204

Stratford Shoal

SIREN, 1st-cl. air; blast 2 sec., silent 13 sec.

N41 03.582

W073 06.078

Tongue Point

BELL; 1 stroke every 20 sec.

N41 09.998

W073 10.650

Delaware Breakwater East End

HORN, air; blast 2 sec., silent 13 sec.

N38 47.832

W075 06.000

Fourteen Foot Bank

DIAPHONE, air; blast 3 sec., silent 27 sec.

N39 02.892

W075 10.932

Harbor of Refuge

SIREN, 1st-cl. air: group of 3 blasts every 45 sec.: 3 blasts 2 sec. each, 2 silences 2 sec. each, 1 silence 35 sec.

N38 48.876

W075 05.544

Overfalls Lightship

DIAPHONE, two-tone, air; 2 blasts every 20 sec., blast 1.5 secs., silent 3 sec., blast 1.5 secs., silent 14 sec.

N38 47.100

W075 00.700

Egmont Key

DIAPHONE, air; blast 4 sec., silent 26 sec.

N27 36.048

W082 45.642

St. Johns Lightship

HORN, diaphragm, air; blast 5 sec., silent 25 sec.

N30 23.500

W081 18.000

Savannah Lightship

HORN, diaphragm, air; blast 2 sec., silent 18 sec.

N31 56.600

W080 39.800

Cubits Gap

SIREN, electric; blast 5 sec., silent 15 sec.

N29 11.502

W089 15.834

Point au Fer Reef

BELL; 1 stroke every 20 sec.

N29 22.300

W091 23.100

Sabine Pass East Jetty

DIAPHONE, air; blast 2 sec., silent 18 sec.

N29 38.676

W093 49.367

South Pass East Jetty

BELL; one stroke every 10 sec. (CO₂).

N28 59.382

W089 08.190

South Pass West Jetty

DIAPHONE, air, blast 2 sec., silent 18 sec.

N28 59.502

W089 08.412

Annisquam Harbor

SIREN, electric, blast 5 sec., silent 55 sec.

N42 39.714

W070 40.890

Baker's Island (Southeastern)

SIREN, 1st-cl. air: blasts 3 sec., silent 27 sec.

N42 32.190

W070 47.154

Borden Flats

BELL; 1 stroke every 15 sec.

N41 42.270

W071 10.464

Boston Lightship

DIAPHONE, two-tone, air; blast 3 sec., silent 17 sec.

N42 20.400

W070 45.500

Boston

SIREN, 1st-cl. air; group of 2 blasts every 60 sec.: blast 3 sec., silent 3 sec., blast 3 sec., silent 51 sec.

N42 19.674

W070 53.406

Brant Point

BELL: group of 2 strokes, silent 30 sec., 1 stroke, silent 30 sec.

N41 17.394

W070 05.418

Butler Flats

HORN, diaphragm, air; blast 3 sec., silent 12 sec.

N41 36.228

W070 53.670

Cape Ann

DIAPHONE, air; group of 3 blasts every 60 sec.: 3 blasts 3 sec. each, 2 silences 3 sec. each, 1 silence 45 sec.

N42 38.208

W070 34.500

Cleveland East Ledge

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N41 37.860

W070 41.652

Cross Rip Lightship

HORN, diaphragm, air; blast 3 sec., silent 12 sec.

N41 26.800

W070 17.500

Deer Island

BELL; 1 stroke every 10 sec.

N42 20.388

W070 57.270

Dumpling Rock

SIREN, electric; blast 4 sec., silent 26 sec.

N41 32.286

W070 55.284

Duxbury Pier

BELL; 1 stroke every 15 sec.

N41 59.244

W070 38.916

Eastern Point

BELL; group of 2 strokes every 20 sec.

N42 34.818

W070 39.870

Edgartown Harbor

BELL, electric, 1 stroke every 10 sec.

N41 23.454

W070 30.186

Gloucester Breakwater

BELL; 1 stroke every 10 sec.

N42 34.956

W070 40.344

Graves

HORN, diaphragm, air; group of 2 blasts every 20 sec.; blast 1.5 sec., silent 3 sec., blast 1.5 sec., silent 14 sec.

N42 21.906

W070 52.152

Handkerchief Shoal Lightship

HORN, diaphragm, air; blast 4 sec., silent 26 sec.

N41 29.200

W070 04.000

Hen and Chickens Lightship

HORN, diaphragm, chime, air; blast 3 sec., silent 12 sec.

N41 27.000

W071 01.100

Highland

HORN, diaphragm, electric; blast 3 sec., silent 12 sec.

N42 02.350

W070 03.621

Long Point

BELL; 1 stroke, silent 30 sec., group of 2 strokes, silent 30 sec.

N42 01.992

W070 10.116

Nantucket Shoals Lightship

DIAPHONE, two-tone, air; blast 3 sec., silent 12 sec.

N40 37.000

W069 18.500

Narrows

BELL; 1 stroke every 20 sec.

N42 19.344

W070 55.182

Nobska Point

HORN, diaphragm air; group of 3 blasts every 30 sec.: 3 blasts 2 sec. each, 2 silences 1 sec. each, 1 silence 22 sec.

N41 30.948

W070 39.306

Palmer Island

BELL, electric; 1 stroke every 10 sec.

N41 37.614

W070 54.546

Plymouth (Southeast)

HORN, diaphragm, air: blast 3 sec., silent 12 sec.

N42 00.207

W070 36.038

100

Pollock Rip Lightship

DIAPHONE, air; blast 3.5 sec., silent 26.5 seconds.

N41 36.100

W069 51.100

101

Race Point

WHISTLE, air; group of 2 blasts every 60 sec.; blast 2 sec., silent 4 sec., blast 2 sec., silent 52 sec.

N42 03.738

W070 14.586

102

Stonehorse Shoal Lightship

DIAPHONE, two-tone, air; blast 3 sec., silent 12 sec.

N41 32.800

W069 59.100

103

Ten Pound Island

BELL; group of 2 strokes every 131/2 sec.

N42 36.114

W070 39.936

104

Vineyard Sound Lightship

HORN, diaphragm, steam; blast 3 sec., silent 27 sec.

N41 22.600

W071 00.200

105

West Chop

WHISTLE, air: blast 3 sec., silent 27 sec.

N41 28.848

W070 35.988

106

Wood End

SIREN, electric; blast 4 sec., silent 26 sec.

N42 01.275

W070 11.610

107

Baltimore

BELL, 1 stroke every 30 sec. (CO₂) when ice runs.

N39 03.552

W076 23.940

108

Bloody Point Bar

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N38 49.992

W076 23.484

109

Choptank River

BELL; 1 stroke every 10 sec.

N38 39.342

W076 11.070

110

Cove Point

DIAPHONE, air; blast 3 sec., silent 12 sec.

N38 23.178

W076 22.908

111

Craighill Channel Lower Range Front

HORN, diaphragm, air; blast 3 sec., silent 27 sec.

N39 11.317

W076 23.670

112

Drum Point

BELL, group of 2 strokes every 15 sec.

N38 19.140

W076 25.260

113

Fort Carroll

BELL; 1 stroke every 15 sec. (CO₂).

N39 12.876

W076 31.194

114

Fort Washington

BELL, electric; 1 stroke every 10 sec.

N38 42.738

W077 02.214

115

Great Shoals

BELL; 1 stroke every 15 sec.

N38 12.858

W075 52.764

116

Greenbury Point Shoal

BELL; 1 stroke every 20 sec. (CO₂).

N38 58.080

W076 27.240

117

Holland Island Bar

DIAPHONE, air: group of 2 blasts every 20 sec.; blast 2 sec., silent 2 sec., blast 2 sec., silent 14 sec.

N38 04.122

W076 05.742

118

Hooper Island

HORN, diaphragm, air; blast 3 sec., silent 27 sec.

N38 13.600

W076 04.500

119

Hooper Strait

HORN, diaphragm, air; blast 3 sec., silent 12 sec.

N38 15.400

W076 15.000

120

Janes Island

BELL; 1 stroke every 30 sec. (CO₂).

N37 57.804

W075 55.104

121

Lazaretto Point

BELL, electric; 1 stroke every 8 sec.

N39 15.767

W076 34.300

122

Love Point

HORN, diaphragm, air; blast 2 sec., silent 18 sec.

N39 03.426

W076 16.992

123

Lower Cedar Point

BELL, 1 stroke every 12 sec.

N38 20.406

W076 59.616

124

Maryland Point

BELL; group of 2 strokes every 15 sec.

N38 20.983

W077 11.862

125

Mathias Point Shoal

BELL; 1 stroke, silent 20 sec.; group of 2 strokes, silent 20 sec.

N38 24.312

W077 02.568

126

Piney Point

HORN, diaphragm, air; blast 3 sec., silent 12 sec.

N38 08.118

W076 31.782

127

Point Lookout

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N38 02.328

W076 19.320

128

Point No Point

HORN, diaphragm, air; blast 1.5 sec., silent 13.5 sec.

N38 07.686

W076 17.418

129

Ragged Point

BELL; group of 2 strokes every 10 sec.

N38 09.264

W076 36.084

130

Sandy Point Shoal

HORN, diaphragm, air; blast 3 sec., silent 12 sec.

N39 00.960

W076 23.076

131

Seven Foot Knoll

BELL, electric; 1 stroke every 12 sec.

N39 09.318

W076 24.540

132

Sharkfin Shoal

BELL; group of 2 strokes every 15 sec.

N38 12.132

W075 59.202

133

Sharps Island

HORN, diaphragm, air; group of 2 blasts every 30 sec., blast 1.5 sec., silent 1.5 sec., blast 1.5 sec., silent 25.5 sec.

N38 38.346

W076 22.548

134

Solomons Lump

BELL; 1 stroke every 10 sec.

N38 02.880

W076 00.900

135

Thomas Point Shoal

DIAPHONE, air; blast 2 sec., silent 13 sec.

N38 53.940

W076 26.166

136

Upper Cedar Point

BELL; 1 stroke every 15 sec.

N38 24.156

W077 04.962

137

Bass Harbor Head

BELL, electric; 1 stroke every 10 sec.

N44 13.320

W068 20.232

138

Bear Island

BELL; 1 stroke every 15 sec.

N44 17.010

W068 16.194

139

Boon Island

BELL; hand, answers signals.

N43 07.200

W070 28.620

140

Browns Head

HORN, diaphragm, electronic; group of 2 blasts every 20 sec., blast 1.5 sec., silent 3 sec., blast 1.5 sec., silent 14 sec.

N44 06.708

W068 54.570

141

Burnt Coat Harbor

BELL; 1 stroke every 15 sec.

N44 08.052

W068 26.832

142

Burnt Island

BELL; group of 2 strokes every 60 sec.

N43 49.512

W069 38.412

143

Cape Elizabeth (East Tower)

DIAPHONE, air; group of 3 blasts every 60 sec.: 3 blasts 2 sec. each, 2 silences 2 sec. each, 1 silence 50 sec.

N43 33.966

W070 12.006

144

Cape Neddick

BELL; 1 stroke every 15 sec.

N43 09.912

W070 35.466

145

Cuckolds

HORN, diaphragm, air; blast 2.5 sec., silent 17.5 sec.

N43 46.782

W069 38.994

146

Curtis Island

BELL, electric, 1 stroke every 10 sec.

N44 12.084

W069 02.934

147

Deer Island Thorofare

BELL; group of 2 strokes every 15 sec.

N44 08.065

W068 42.200

148

Doubling Point

BELL; 1 stroke every 15 sec.

N43 52.950

W069 48.402

149

Eagle Island

BELL; 1 stroke every 20 sec.

N44 13.056

W068 46.062

150

Egg Rock

HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 4 sec., silent 2 sec., blast 4 sec., silent 20 sec.

N44 21.246

W068 08.286

151

Fort Point

BELL; 1 stroke every 20 sec.

N44 28.032

W068 48.702

152

Goat Island

BELL; 1 stroke every 20 sec.

N43 21.468

W070 25.506

153

Goose Rocks

BELL; 1 stroke, silent 20 sec., group of 2 strokes, silent 20 sec.

N44 08.124

W068 49.830

154

Great Duck Island

DIAPHONE, air; blast 2.5 sec., silent 17.5 sec.

N44 08.532

W068 14.754

155

Halfway Rock

HORN, diaphragm, air; group of 2 blasts every 60 sec. Blast 3 sec., silent 3 sec., blast 3 sec., silent 51 sec.

N43 39.348

W070 02.214

156

Heron Neck

SIREN; electric, blast 3 sec., silent 27 sec.

N44 01.512

W068 51.714

157

Libby Island

DIAPHONE, air; blast 2 sec., silent 13 sec.

N44 34.092

W067 22.038

158

Little River

BELL, 1 stroke every 30 sec.

N44 39.054

W067 11.538

159

Lubec Channel

BELL, electric; 1 stroke every 10 sec.

N44 50.514

W066 58.584

160

Machias Seal Island

DIAPHONE, air: group of 2 blasts every 60 sec.

N44 30.102

W067 06.102

161

Marshall Point

BELL; 1 stroke every 20 sec.

N43 55.044

W069 15.678

162

Matinicus Rock (South Tower)

DIAPHONE, air; blast 2 sec., silent 13 sec.

N43 47.016

W068 51.336

163

Moose Peak

HORN, diaphragm, air; group of 2 blasts every 30 sec.: blast 1.5 sec., silent 2 sec., blast 1.5 sec., silent 25 sec.

N44 28.464

W067 31.920

164

Mount Desert Rock

HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 1 sec., blast 1 sec., silent 26 sec.

N43 58.110

W068 07.692

165

Owls Head

BELL; 1 stroke every 15 sec.

N44 05.532

W069 02.646

166

Perkins Island

BELL; 1 stroke, silent 15 sec., group of 2 strokes, silent 15 sec.

N43 47.214

W069 47.106

167

Petit Manan

HORN, diaphragm, air; blast 3 sec., silent 27 sec.

N44 22.056

W067 51.846

168

Pond Island

BELL; 1 stroke every 10 sec.

N43 44.400

W069 46.218

169

Portland Lightship

HORN, diaphragm, air; blast 3 sec., silent 27 sec.

N43 31.600

W070 05.500

170

Portland Head

HORN, diaphragm, chime, air; blast 4 sec., silent 16 sec.

N43 37.386

W070 12.474

171

Ram Island

BELL; 1 stroke every 20 sec.

N43 48.240

W069 35.958

172

Ram Island Ledge

BELL; 1 stroke every 10 sec.

N43 37.890

W070 11.238

173

Rockland Breakwater

HORN, diaphragm, air; blast 5 sec., silent 15 sec.

N44 06.240

W069 04.650

174

Saddleback Ledge

BELL; 1 stroke every 10 sec.

N44 00.858

W068 43.584

175

Seguin Island

DIAPHONE, air; group of 2 blasts every 20 sec.: blast 1.5 sec., silent 1 sec., blast 1.5 sec., silent 16 sec.

N43 42.450

W069 45.486

176

Spring Point Ledge

BELL; group of 2 strokes every 12 sec.

N43 39.126

W070 13.434

177

Squirrel Point

BELL; 1 stroke every 15 sec.

N43 48.996

W069 48.144

178

St. Croix River

BELL, 1 stroke every 15 sec.

N45 07.722

W067 08.016

179

Two Bush Island

HORN, diaphragm, air; blast 2 sec., silent 18 sec.

N43 57.864

W069 04.422

180

West Quoddy Head

DIAPHONE, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 2 sec. blast 2 sec., silent 24 sec.

N44 48.912

W066 57.030

181

Whaleback Ledge

HORN, diaphragm, chime, air; group of 2 blasts every 30 sec., blast 2 sec., silent 2 sec., blast 2 sec., silent 24 sec.

N43 03.528

W070 41.778

182

Whitehead

HORN, diaphragm, air; group of 2 blasts every 30 sec., blast 2.5 sec., silent 2.5 sec., blast 2.5 sec., silent 22.5 sec.

N43 58.722

W069 07.458

183

Whitlock's Mill

BELL; 1 stroke every 20 sec.

N45 09.768

W067 13.632

184

Wood Island

BELL; 1 stroke, silent 25 sec., group of 2 strokes, silent 25 sec.

N43 27.408

W070 19.740

185

Diamond Shoal Lightship

DIAPHONE, two-tone, air; blast 5 sec., silent 55 sec.

N35 05.300

W075 19.700

186

Frying Pan Shoal Lightship

DIAPHONE, two-tone, air; blast 4 sec., silent 26 sec.

N33 28.000

W077 33.800

187

Isles of Shoals

HORN, diaphragm, air; blast 3 sec., silent 27 sec.

N42 58.032

W070 37.404

188

Portsmouth Harbor

BELL; 1 stroke every 10 sec.

N43 04.266

W070 42.516

189

Ambrose Channel Lightship

HORN, diaphragm, air; blast 3 sec., silent 12 sec.

N40 27.100

W073 04.400

190

Barnegat Lightship

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N39 45.000

W073 56.000

191

Bergen Point

BELL, electric; 1 stroke every 15 sec.

N40 38.583

W074 08.900

192

Brandywine Shoal

HORN, diaphragm, air: blast 2 sec., silent 13 sec.

N38 59.172

W075 06.792

193

Elbow of Cross Ledge

HORN, diaphragm, air; group of 2 blasts every 30 sec. Blast 2 sec., silent 1 sec., blast 2 sec., silent 25 sec.

N39 10.897

W075 16.098

194

Five Fathom Bank Lightship

DIAPHONE, two-tone, air; blast 2-sec., silent 28 sec.

N38 47.300

W074 34.600

195

Miah Maull Shoal

HORN, diaphragm, air; blast 2 sec., silent 18 sec.

N39 07.584

W075 12.582

196

Sandy Hook East Beacon

BELL, electric; 1 stroke every 10 sec.

N40 28.250

W074 01.122

197

Scotland Lightship

HORN, diaphragm, air; group of 2 blasts every 20 sec.; blast 2 sec., silent 2 sec., blast 2 sec., silent 14 sec.

N40 26.600

W073 55.200

198

Ship John Shoal

HORN, diaphragm, air; blast 2 sec, silent 18 sec.

N39 18.318

W075 22.602

199

Tinicum Island Range Front

BELL; 1 stroke every 30 sec.

N39 50.867

W075 15.167

200

Cold Spring Harbor

BELL, electric; 2 strokes every 15 sec.

N40 54.852

W073 29.592

201

Coney Island

BELL, electric; 1 stroke every 10 sec.

N40 34.600

W074 00.702

202

Danskammer Point

BELL, electric; 1 stroke every 20 sec.

N41 34.433

W073 57.833

203

Eaton's Neck

SIREN, 1st-cl. air: blast 2 sec., silent 28 sec.

N40 57.240

W073 23.730

204

Esopus Meadows

BELL, electric; 2 strokes every 15 sec.

N41 52.104

W073 56.496

205

Execution Rocks

SIREN, 1st-cl. air: blast 3 sec., silent 17 sec.

N40 52.686

W073 44.262

206

Fort Wadsworth

BELL, electric; 1 stroke every 15 sec.

N40 36.354

W074 03.240

207

Hell Gate

BELL, electric; 1 stroke every 5 sec.

N40 46.680

W073 56.089

208

Hudson-Athens

BELL, electric; 1 stroke every 15 sec.

N42 15.120

W073 48.522

209

Latimer Reef

BELL; 1 stroke every 15 sec.

N41 18.270

W071 55.998

210

Little Gull Island

HORN, diaphragm, air; blast 2 sec., silent 13 sec. One horn points to 90°, and one points to 330°.

N41 12.384

W072 06.408

211

Montauk Point

HORN, diaphragm, air; (2) horns points 30° and 140°, blast 2 sec., silent 13 sec., alternately.

N41 04.260

W071 51.426

212

North Brother Island

BELL; 1 stroke every 15 sec.

N40 47.958

W073 53.976

213

North Dumpling

HORN, diaphragm, air; blast 2 sec., silent 10 sec.

N41 17.274

W072 01.158

214

Old Orchard Shoal

HORN, diaphragm, electric; blast 3 sec., silent 7 sec.

N40 30.744

W074 05.928

215

Orient Point

HORN, diaphragm, air; group of 3 blasts every 30 sec., 3 blasts 2 sec. each, 2 silences 4 sec. each, 1 silence 16 sec.

N41 09.810

W072 13.416

216

Plum Island

SIREN, electric; blast 4 sec., silent 11 sec.

N41 10.422

W072 12.690

217

Port Jefferson Harbor Breakwater

BELL; 1 stroke every 20 sec.

N40 58.338

W073 05.495

218

Race Rock

SIREN, 1st-cl. air; group of 2 blasts every 30 sec.: blast 2 sec., silent 1 sec., blast 2 sec., silent 25 sec.

N41 14.604

W072 02.820

219

Robbins Reef

HORN, diaphragm, electric; blast 2 sec., silent 8 sec.

N40 39.444

W074 03.924

220

Rockland Lake

BELL, electric; 1 stroke every 15 sec.

N41 08.840

W073 54.287

221

Romer Shoal

DIAPHONE, air; blast 2 sec., silent 13 sec.

N40 30.774

W074 00.810

222

Rondout Creek

BELL, electric; 1 stroke every 15 sec.

N41 55.248

W073 57.744

223

Saugerties

BELL, electric; 1 stroke every 5 sec.

N42 04.326

W073 55.776

224

Shinnecock Bay

SIREN, electric; blast 4 sec., silent 11 sec.

N40 50.523

W072 28.695

225

Stepping Stones

BELL; group of 2 strokes every 20 sec.

N40 49.458

W073 46.476

226

Stony Point (Hudson River)

BELL, electric; 1 stroke every 15 sec.

N41 14.460

W073 58.156

227

Tarrytown

BELL, electric; 1 stroke every 20 sec.

N41 05.046

W073 52.452

228

Throgs Neck

BELL, electric; 1 stroke every 10 sec.

N40 48.276

W073 47.442

229

West Bank

HORN, diaphragm, electric, group of 2 blasts every 15 sec.: blast 2 sec., silent 2 sec., blast 2 sec., silent 9 sec.

N40 32.280

W074 02.574

230

West Point

BELL, electric; 1 stroke every 20 sec. Operates automatically only by a blast of a ships' whistle.

N41 23.765

W073 57.068

231

Whitestone Point

BELL, electric; group of 2 strokes every 20 sec.

N40 48.084

W073 49.176

232

Cape Arago

HORN, chime diaphragm, air; group of 2 unequal blasts every 60 sec.. Blast 5 sec., silent 12 sec., blast 3 sec., silent 40 sec.

N43 20.472

W124 22.524

233

Desdemona Sands

BELL, electric; 2 strokes every 30 sec.

N46 13.542

W123 57.306

234

Tillamook

SIREN, 1st-cl. air: Blast 5 sec., silent 40 sec.

N45 56.232

W124 01.146

235

Warrior Rock

BELL, electric; 1 stroke every 15 sec., operates continuously.

N45 50.916

W122 47.304

236

Beavertail

SIREN, 1st-cl. air; blast 3 sec., silent 27 sec.

N41 26.964

W071 23.970

237

Block Island Southeast

HORN, diaphragm, air; blast 5 sec., silent 25 sec.

N41 09.204

W071 33.126

238

Brenton Reef Lightship

DIAPHONE, air; blast 6 sec., silent 24 sec.

N41 25.600

W071 22.600

239

Bullock's Point

BELL, electric; one stroke every 15 sec.

N41 44.263

W071 21.852

240

Castle Hill

BELL; group of 2 strokes every 20 sec.

N41 27.732

W071 21.774

241

Conimicut

BELL; 1 stroke every 15 sec.

N41 43.020

W071 20.706

242

Gould's Island

HORN, diaphragm, air; blast 4 sec., silent 26 sec.

N41 32.050

W071 20.617

243

Great Salt Pond Breakwater Outer Beacon

HORN, diaphragm, air: blast 3 sec., silent 7 sec.

N41 11.958

W071 35.591

244

Gull Rocks

BELL; 1 stroke every 20 sec.

N41 30.150

W071 19.983

245

Hog Island Shoal

SIREN, electric: blast 3 sec., silent 10 sec.

N41 37.944

W071 16.392

246

Newport Harbor

BELL; 1 stroke every 10 sec.

N41 29.598

W071 19.626

247

Point Judith

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N41 21.660

W071 28.884

248

Pomham Rocks

BELL; group of 2 strokes every 20 sec.

N41 46.656

W071 22.170

249

Prudence Island

BELL; 1 stroke every 15 sec.

N41 36.354

W071 18.210

250

Rose Island

HORN, 2d-cl. reed: blast 2 sec., silent 13 sec.

N41 29.730

W071 20.562

251

Sabin Point

BELL, electric; 2 strokes every 15 sec.

N41 45.733

W071 22.550

252

Sakonnet

HORN, diaphragm, air; blast 3 sec., silent 12 sec.

N41 27.192

W071 12.150

253

Warwick

HORN, diaphragm, air: blast 3 sec., silent 12 sec.

N41 40.026

W071 22.704

254

Watch Hill

HORN, diaphragm, electric; blast 3 sec., silent 27 sec.

N41 18.234

W071 51.516

255

Galveston Jetty

DIAPHONE, air; blast 2 sec., silent 18 sec.

N29 19.674

W094 41.562

256

Bowlers Rock

BELL; 1 stroke every 20 sec. (CO₂).

N37 49.470

W076 43.962

257

Cape Henry

DIAPHONES, 2, air: Horns point 77° and 333°, blast 2 sec., silent 18 sec.

N36 55.584

W076 00.438

258

Cherrystone Bar

BELL; 1 stroke every 20 sec. (CO₂).

N37 15.384

W076 01.944

259

Chesapeake Lightship

DIAPHONE, two-tone, air; blast 3 sec., silent 27 sec.

N36 58.700

W075 42.200

260

Craney Island

BELL; 1 stroke every 30 sec. (CO₂).

N36 53.520

W076 20.220

261

Deep Water Shoals

BELL, 1 stroke every 15 sec.

N37 08.934

W076 38.208

262

Great Wicomico River

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N37 48.258

W076 16.056

263

Newport News Middle Ground

BELL; group of 2 strokes every 15 sec.

N36 56.712

W076 23.490

264

Old Plantation Flats

DIAPHONE, air; blast 3 sec., silent 17 sec.

N37 13.728

W076 02.814

265

Old Point Comfort

BELL, electric; 1 stroke every 10 sec.

N37 00.108

W076 18.390

266

Pages Rock

BELL; 1 stroke every 15 sec.

N37 18.654

W076 35.196

267

Smith Point

DIAPHONE, air; blast 3 sec., silent 12 sec.

N37 52.812

W076 10.998

268

Stingray Point

BELL; 1 stroke, silent 71/2 sec., 1 stroke, silent 30 sec.

N37 33.700

W076 16.383

269

Tangier Sound

HORN, diaphragm, air; blast 3 sec., silent 17 sec.

N37 47.286

W075 58.428

270

Thimble Shoal

DIAPHONE, air; blast 2 sec., silent 8 sec.

N37 00.876

W076 14.394

271

Tue Marshes

HORN, diaphragm, air, blast 2 sec., silent 13 sec.

N37 14.136

W076 23.148

272

Windmill Point

BELL; 1 stroke every 10 sec.

N37 35.808

W076 14.154

273

Winter Quarter Shoal Lightship

DIAPHONE, two-tone, air; blast 3 sec., silent 57 sec.

N37 55.500

W074 56.400

274

Wolf Trap

DIAPHONE, air; blast 3 sec., silent 7 sec.

N37 23.424

W076 11.382

275

York Spit

DIAPHONE, air; blast 3 sec.; silent 17 sec.

N37 12.583

W076 15.250

276

Alki Point

HORN, diaphragm, air; group of 2 blasts every 30 sec.; blast 3 sec., silent 6 sec., blast 3 sec., silent 18 sec.

N47 34.578

W122 25.236

277

Browns Point

HORN, diaphragm, air; group of 3 blasts every 30 sec., blast 3 sec., silent 2 sec., blast 3 sec., silent 2 sec., blast 3 sec., silent 17 sec.

N47 18.354

W122 26.658

278

Burrows Island

HORN, 3d-cl. reed, air; group of 2 blasts every 40 sec.; blast 4 sec., silent 7 sec., blast 4 sec., silent 25 sec.

N48 28.680

W122 42.810

279

Bush Point

HORN, diaphragm,air; blast 5 sec., silent 25 sec.

N48 01.854

W122 36.426

280

Cape Flattery

DIAPHONE, air; group of 2 unequal blasts every 60 sec.; blast 5 sec., silent 15 sec, blast 3 sec., silent 37 sec.

N48 23.496

W124 44.196

281

Destruction Island

DIAPHONE, air; blast 4 sec., silent 26 sec.

N47 40.470

W124 29.220

282

Dofflemyer Point

HORN, diaphragm, air; blast 5 sec., silent 10 sec.

N47 08.436

W122 54.450

283

Ediz Hook

HORNS, diaphragm, air (2); sound simultaneously, blast 5 sec., silent 40 sec. 602 yards 94° from light tower.

N48 08.406

W123 24.714

284

Grays Harbor

DIAPHONE, air; group of 3 blasts every 60 sec.; blast 2 sec., silent 1 sec., blast 2 sec., silent 25 sec, blast 2 sec., silent 28 sec.

N46 53.292

W124 07.014

285

Lime Kiln

HORN, diaphragm, air; group 2 blasts every 20 sec.; blast 2 sec., silent 4 sec., blast 2 sec., silent 12 sec.

N48 30.948

W123 09.156

286

Marrowstone Point

HORN, (2), diaphragm, air; groups of 3 blasts every 30 sec., 3 blasts 2 sec. each, 2 silences 2 sec. each, 1 silence 20 sec.

N48 06.096

W122 41.268

287

Mukilteo

HORN, 3d-cl. reed, air; blast 4 sec., silent 16 sec.

N47 56.922

W122 18.378

288

New Dungeness

DIAPHONE, two-tone, air; blast 2 sec., silent 18 sec.

N48 10.902

W123 06.612

289

Patos Island

DIAPHONE, air; blast 3 sec., silent 27 sec.

N48 47.340

W122 58.266

290

Point No Point

HORN, 3d-cl. reed, air; groups of 2 blasts every 30 sec., blast 3 sec., silent 3 sec., blast 3 sec., silent 21 sec.

N47 54.733

W122 31.608

291

Point Robinson

HORN, diaphragm, air; blast 4 sec., silent 16 sec.

N47 23.286

W122 22.464

292

Point Wilson

HORN: chime diaphragm air; blast 4 sec., silent 26 sec.

N48 08.652

W122 45.282

293

Semiahmoo Harbor

HORN, diaphragm,air; blast 3 sec., silent 17 sec.

N48 59.556

W122 46.932

294

Slip Point

DIAPHONE, air; blast 3 sec., silent 27 sec.

N48 15.870

W124 15.060

295

Turn Point

HORN, diaphragm, air; group 2 unequal blasts every 30 sec.; blast 4 sec., silent 4 sec., blast 2 sec., silent 20 sec.

N48 41.322

W123 14.232

296

West Point

HORN, diaphragm, air; blast 3 sec., silent 27 sec.

N47 39.720

W122 26.142


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