Rockland Lake (New York)
Historical Light List Characteristics
| 1898 | Iso W 10s. W121/2. | LHB Light List (Atlantic): 387 |
| 1899 | LHB Light List (Atlantic): 401 | |
| 1905 | LHB Light List (Atlantic): 435 | |
| 1908 | LHB Light List (Atlantic): 468 | |
| 1915 | Iso W 10s. W12. | USLHS Light List (Atlantic): 596 |
| 1917 | USLHS Light List (Atlantic): 613 | |
| 1920 | USLHS Light List (Atlantic): 635 | |
| 1927 | Iso W 10s. W12. | USLHS Light List (Atlantic): 672 |
| 1931 | Iso W 10s. | USLHS Light List (Atlantic): 788 |
| 1935 | USLHS Light List (Atlantic): 941 | |
| 1940 | USCG Light List (Atlantic): 943 | |
| 1943 | USCG Light List (Atlantic): 1283 | |
| 1945-1947 | ||
| 1950-1952 | ||
| 1953-1955 | USCG Light List - Vol. I-VI: 1439 | |
| 1957 | ||
| 1959-1960 | USCG Light List - Vol. I-V: 1552 | |
| 1961 | USCG Light List - Vol. I: 1552 | |
| 1963-1965 | ||
| 1966 | USCG Light List - Vol. I: 1859 | |
| 1969-1971 | ||
| 1972 | Fl W 6s. fl 1. | USCG Light List - Vol. I: 1860.5 |
| 1973 | Fl W 6s. W9. fl 1. | |
| 1974-1978 | Fl W 6s. W9. | |
| 1979 | Fl W 6s. W6. | |
| 1982 | ||
| 1987 | USCG Light List - Vol. I: 35005 | |
| 1990-1992 | USCG Light List - Vol. I: 35060 | |
| 1993-1996 | USCG Light List - Vol. I: 37775 | |
| 2004 |
Historical Light List Optics and Structures
| 1898 | 4th | N/A | 50 | Black cylindrical foundation pier, surmounted by a conical tower, lower half brown, upper half white; lantern, black. A gallery with roof around base of tower. | LHB Light List (Atlantic): 387 |
| 1899 | LHB Light List (Atlantic): 401 | ||||
| 1905 | Black, cylindrical foundation pier, surmounted by a conical tower, lower half brown, upper half white; lantern, black. A gallery with roof around base of tower. | LHB Light List (Atlantic): 435 | |||
| 1908 | Black, cylindrical, foundation pier, surmounted by a conical tower, lower half brown, upper half white; black lantern; gallery with roof around base of tower. | LHB Light List (Atlantic): 468 | |||
| 1915 | N/A | Conical tower, lower half brown, upper half white; on black cylindrical pier. | USLHS Light List (Atlantic): 596 | ||
| 1917 | USLHS Light List (Atlantic): 613 | ||||
| 1920 | USLHS Light List (Atlantic): 635 | ||||
| 1927 | N/A | N/A | 50 | Red skeleton tower, on white tankhouse, on concrete base; on riprap. | USLHS Light List (Atlantic): 672 |
| 1931 | 375 mm a | Red skeleton tower, white tank house, concrete base on riprap. | USLHS Light List (Atlantic): 788 | ||
| 1935 | USLHS Light List (Atlantic): 941 | ||||
| 1940 | USCG Light List (Atlantic): 943 | ||||
| 1943 | USCG Light List (Atlantic): 1283 | ||||
| 1945 | |||||
| 1946-1947 | Black skeleton tower, white tank house, concrete base on riprap. | ||||
| 1950-1952 | 375 mm e | ||||
| 1953-1955 | N/A | Black skeleton tower, small white house, concrete base on riprap. | USCG Light List - Vol. I-VI: 1439 | ||
| 1957 | |||||
| 1959-1960 | USCG Light List - Vol. I-V: 1552 | ||||
| 1961 | USCG Light List - Vol. I: 1552 | ||||
| 1963-1965 | |||||
| 1966 | USCG Light List - Vol. I: 1859 | ||||
| 1969-1971 | |||||
| 1972-1974 | Black skeleton tower, small white house, concrete base on rip-rap. | USCG Light List - Vol. I: 1860.5 | |||
| 1975-1977 | NB on skeleton tower, small house, concrete base on rip-rap. | ||||
| 1978-1979 | NG on skeleton tower, small house, concrete base on rip-rap. | ||||
| 1982 | |||||
| 1987 | NG on skeleton tower, small house, concrete base on riprap. | USCG Light List - Vol. I: 35005 | |||
| 1990 | USCG Light List - Vol. I: 35060 | ||||
| 1991-1992 | N/A | N/A | 50 | NG on skeleton tower. | USCG Light List - Vol. I: 35060 |
| 1993-1996 | USCG Light List - Vol. I: 37775 | ||||
| 2004 | N/A | N/A | 50 | NG on skeleton tower. | USCG Light List - Vol. I: 37775 |
Historical Light List Audible Fog Signals
| 1898 | Bell struck by machinery, a double blow, every 15 sec. | None | LHB Light List (Atlantic): 387 |
| 1899 | LHB Light List (Atlantic): 401 | ||
| 1905 | Bell struck by machinery a double blow every 15 sec. | LHB Light List (Atlantic): 435 | |
| 1908 | LHB Light List (Atlantic): 468 | ||
| 1915 | Bell; 2 strokes every 15 sec. | USLHS Light List (Atlantic): 596 | |
| 1917 | Bell; gp. 2 strokes every 15 sec. | USLHS Light List (Atlantic): 613 | |
| 1920 | USLHS Light List (Atlantic): 635 | ||
| 1927 | Bell (1,000-lb.); 1 stroke every 15 sec. | USLHS Light List (Atlantic): 672 | |
| 1931 | BELL; 1 stroke every 15 sec. | USLHS Light List (Atlantic): 788 | |
| 1935 | USLHS Light List (Atlantic): 941 | ||
| 1940 | USCG Light List (Atlantic): 943 | ||
| 1943 | USCG Light List (Atlantic): 1283 | ||
| 1945-1946 | |||
| 1947 | BELL, electric; 1 stroke every 15 sec. | ||
| 1950-1952 | |||
| 1953-1955 | BELL: 1 stroke ev 15s. | USCG Light List - Vol. I-VI: 1439 | |
| 1957 | |||
| 1959-1960 | USCG Light List - Vol. I-V: 1552 | ||
| 1961 | USCG Light List - Vol. I: 1552 | ||
| 1963-1965 | |||
| 1966 | USCG Light List - Vol. I: 1859 | ||
| 1969-1971 | |||
| 1972-1977 | USCG Light List - Vol. I: 1860.5 | ||
| 1978-1979 | None | ||
| 1982 | |||
| 1987 | USCG Light List - Vol. I: 35005 | ||
| 1990-1992 | USCG Light List - Vol. I: 35060 | ||
| 1993-1996 | USCG Light List - Vol. I: 37775 | ||
| 2004 |
 |
1894 - Present (Exact location of modern 1923 light. Location of original 1894 lighthouse is assumed to be close.) |