Castle Hill (Rhode Island)
Historical Light List Characteristics
| 1893 | Fl R 30s. R113/4. | LHB Light List (Atlantic): 147 |
| 1898 | Fl R 30s. R111/2. | LHB Light List (Atlantic): 176 |
| 1899 | LHB Light List (Atlantic): 179 | |
| 1905 | LHB Light List (Atlantic): 193 | |
| 1908 | LHB Light List (Atlantic): 205 | |
| 1915 | Fl R 30s. R12. fl 9. | USLHS Light List (Atlantic): 275 |
| 1917 | USLHS Light List (Atlantic): 286 | |
| 1920 | USLHS Light List (Atlantic): 302 | |
| 1927 | Fl R 30s. R10. fl 9. | USLHS Light List (Atlantic): 306 |
| 1931 | USLHS Light List (Atlantic): 352 | |
| 1935 | USLHS Light List (Atlantic): 396 | |
| 1940 | USCG Light List (Atlantic): 384 | |
| 1943 | USCG Light List (Atlantic): 500 | |
| 1945-1947 | ||
| 1950 | ||
| 1951-1952 | Fl R 30s. R12. fl 9. | |
| 1953-1954 | USCG Light List - Vol. I-VI: 501 | |
| 1955 | Iso R 4s. R12. | |
| 1957 | ||
| 1959-1960 | USCG Light List - Vol. I-V: 539 | |
| 1961 | USCG Light List - Vol. I: 539 | |
| 1963-1965 | ||
| 1966 | USCG Light List - Vol. I: 711 | |
| 1969-1972 | ||
| 1973 | Iso R 4s. R10. | |
| 1974-1979 | Iso R 6s. R10. | |
| 1982 | Iso R 6s. R12. | |
| 1987 | USCG Light List - Vol. I: 16620 | |
| 1990-1992 | USCG Light List - Vol. I: 16385 | |
| 1993-1996 | USCG Light List - Vol. I: 17795 | |
| 2004 |
Historical Light List Optics and Structures
| 1893 | 5th | N/A | 42 | Conical granite tower on granite pier; lantern, black. | LHB Light List (Atlantic): 147 |
| 1898 | 401/4 | LHB Light List (Atlantic): 176 | |||
| 1899 | Conical granite tower, upper half white, on granite pier; lantern, black. | LHB Light List (Atlantic): 179 | |||
| 1905 | Conical, granite tower, upper half white, on granite pier; lantern, black. | LHB Light List (Atlantic): 193 | |||
| 1908 | Conical, granite tower, upper half white, on granite pier; black lantern. | LHB Light List (Atlantic): 205 | |||
| 1915 | N/A | 40 | Conical, granite tower, upper half white. | USLHS Light List (Atlantic): 275 | |
| 1917 | 34 | Conical granite tower, upper half white. | USLHS Light List (Atlantic): 286 | ||
| 1920 | USLHS Light List (Atlantic): 302 | ||||
| 1927 | USLHS Light List (Atlantic): 306 | ||||
| 1931 | 5 o | USLHS Light List (Atlantic): 352 | |||
| 1935 | USLHS Light List (Atlantic): 396 | ||||
| 1940 | N/A | USCG Light List (Atlantic): 384 | |||
| 1943 | USCG Light List (Atlantic): 500 | ||||
| 1945-1947 | |||||
| 1950 | |||||
| 1951-1952 | 500 mm e | ||||
| 1953-1955 | N/A | USCG Light List - Vol. I-VI: 501 | |||
| 1957 | |||||
| 1959-1960 | USCG Light List - Vol. I-V: 539 | ||||
| 1961 | USCG Light List - Vol. I: 539 | ||||
| 1963-1965 | |||||
| 1966 | USCG Light List - Vol. I: 711 | ||||
| 1969-1979 | |||||
| 1982 | |||||
| 1987 | USCG Light List - Vol. I: 16620 | ||||
| 1990-1992 | USCG Light List - Vol. I: 16385 | ||||
| 1993-1996 | USCG Light List - Vol. I: 17795 | ||||
| 2004 |
Historical Light List Audible Fog Signals
| 1893 | None | None | LHB Light List (Atlantic): 147 |
| 1898 | Bell struck by machinery every 30 sec. | LHB Light List (Atlantic): 176 | |
| 1899 | LHB Light List (Atlantic): 179 | ||
| 1905 | LHB Light List (Atlantic): 193 | ||
| 1908 | Bell struck by machinery a single blow every 30 sec. | LHB Light List (Atlantic): 205 | |
| 1915 | Bell; 2 strokes every 18 sec. | USLHS Light List (Atlantic): 275 | |
| 1917 | Bell; gp. 2 strokes every 18 sec. | USLHS Light List (Atlantic): 286 | |
| 1920 | USLHS Light List (Atlantic): 302 | ||
| 1927 | USLHS Light List (Atlantic): 306 | ||
| 1931 | BELL; gp. 2 strokes every 18 sec. | USLHS Light List (Atlantic): 352 | |
| 1935 | USLHS Light List (Atlantic): 396 | ||
| 1940 | BELL; group of 2 strokes every 20 sec. | USCG Light List (Atlantic): 384 | |
| 1943 | USCG Light List (Atlantic): 500 | ||
| 1945-1947 | |||
| 1950-1952 | |||
| 1953-1955 | BELL: gp of 2 strokes ev 20s. | USCG Light List - Vol. I-VI: 501 | |
| 1957 | |||
| 1959-1960 | USCG Light List - Vol. I-V: 539 | ||
| 1961 | USCG Light List - Vol. I: 539 | ||
| 1963-1965 | |||
| 1966 | USCG Light List - Vol. I: 711 | ||
| 1969-1970 | BELL: 2 strokes ev 20s. | ||
| 1971-1972 | HORN, diaphragm; 1 blast ev 10s (1sbl). | ||
| 1973-1975 | HORN, 1 blast ev 10s (1sbl). | ||
| 1976-1979 | HORN: 1 blast ev 10s (1sbl). | ||
| 1982 | HORN: 1 blast ev 10s (1s bl). | ||
| 1987 | HORN: 1 blast ev 10s (1s bl). | USCG Light List - Vol. I: 16620 | |
| 1990-1992 | USCG Light List - Vol. I: 16385 | ||
| 1993-1996 | USCG Light List - Vol. I: 17795 | ||
| 2004 | HORN: 1 blast ev 10s (1s bl). |
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1890 - Present |