Alcatraz Island Light (CA)
Historical Light List Characteristics
| Year | Characteristic | Reference Number |
| Missing light lists prior to 1881 | ||
| 1881 | F W. W19. | LHB Light List (Dist. 12): NA |
| Missing light lists for 1882-1885 | ||
| 1886 | F W. W12. | LHB Light List (Dist. 12): NA |
| 1887-1888 | F W. W19. | |
| Missing light lists for 1889-1891 | ||
| 1892 | F W. W19. | LHB Light List (Dist. 12-13): 845 |
| 1893 | LHB Light List (Dist. 12-13): 870 | |
| 1894 | LHB Light List (Dist. 12-13): 887 | |
| 1895 | LHB Light List (Dist. 12-13): 903 | |
| 1896 | LHB Light List (Dist. 12-13): 1004 | |
| Missing light lists for 1897-1899 | ||
| 1900 | F W. W19. | LHB Light List (Dist. 12-13): 27 |
| Missing light lists for 1901-1905 | ||
| 1906 | Fl W 15s. W19. | LHB Light List (Dist. 12-13): 34 |
| Missing light lists for 1907-1910 | ||
| 1911 | Fl W 15s. W21. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | ||
| 1914 | Fl W 5s. W21. fl 0.5. | USLHS Light List (Pacific): 37 |
| Missing light lists for 1915-1929 | ||
| 1930-1933 | Fl W 5s. W21. fl 0.5. | USLHS Light List (Pacific): 89 |
| Missing light lists for 1934-1944 | ||
| 1945 | Fl W 5s. W21. fl 0.5. | USCG Light List (Pacific): 288 |
| Missing light lists for 1946-1949 | ||
| 1950-1951 | Fl W 5s. W21. fl 0.5. | USCG Light List (Pacific): 284 |
| 1952-1959 | Fl W 5s. W21. fl 0.7. | USCG Light List - Vol. I-V: 301 |
| 1960 | Fl W 5s. W21. fl 0.3. | |
| 1961-1962 | USCG Light List - Vol. III: 301 | |
| 1963 | Fl W 5s. W21. fl 0.2. | |
| 1964-1972 | Fl W 5s. W21. | USCG Light List - Vol. III: 651 |
| 1973-1974 | Fl W 5s. W22. | |
| 1975-1984 | USCG Light List - Vol. III: 578 | |
| 1985 | USCG Light List - Vol. VI: 578 | |
| 1986 | USCG Light List - Vol. VI: 4315 | |
| 1988 | ||
| 1990 | ||
| Missing light lists for 1991-2003 | ||
| 2004 | Fl W 5s. W22. | USCG Light List - Vol. VI: 4315 |
Historical Light List Optics and Structures
| Year | Optic | Tower Height | Focal Plane | Description | Reference Number |
| Missing light lists prior to 1881 | |||||
| 1881 | 3rd | 36 | NA | White; lantern, red. Circular tower on white dwelling, one and a half story. | LHB Light List (Dist. 12): NA |
| Missing light lists for 1882-1885 | |||||
| 1886 | NA | 36 | NA | White; lantern dome, red. Circular tower on white dwelling. | LHB Light List (Dist. 12): NA |
| 1887-1888 | White; lantern dome, black. Circular tower on white dwelling. | ||||
| Missing light lists for 1889-1891 | |||||
| 1892 | 3rd | 36 | NA | Cylindrical white tower, rising from white dwelling with red roof; lantern, black. | LHB Light List (Dist. 12-13): 845 |
| 1893 | 166 | LHB Light List (Dist. 12-13): 870 | |||
| 1894 | LHB Light List (Dist. 12-13): 887 | ||||
| 1895 | LHB Light List (Dist. 12-13): 903 | ||||
| 1896 | LHB Light List (Dist. 12-13): 1004 | ||||
| Missing light lists for 1897-1899 | |||||
| 1900 | 3rd | 36 | 164 | Cylindrical white tower, rising from white dwelling with red roof; lantern, black. | LHB Light List (Dist. 12-13): 27 |
| Missing light lists for 1901-1905 | |||||
| 1906 | 4th | 36 | 164 | Cylindrical white tower, rising from white dwelling with red roof; lantern, black. | LHB Light List (Dist. 12-13): 34 |
| Missing light lists for 1907-1910 | |||||
| 1911 | 4th | NA | NA | Gray. Octagonal, pyramidal, concrete tower. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | |||||
| 1914 | NA | 84 | 214 | Gray; octagonal, pyramidal tower. | USLHS Light List (Pacific): 37 |
| Missing light lists for 1915-1929 | |||||
| 1930-1933 | 4 ei | 91 | 214 | Gray, octagonal, pyramidal tower. | USLHS Light List (Pacific): 89 |
| Missing light lists for 1934-1944 | |||||
| 1945 | 4 e | 91 | 214 | Gray, octagonal, pyramidal tower. | USCG Light List (Pacific): 288 |
| Missing light lists for 1946-1949 | |||||
| 1950-1951 | 4 e | 91 | 214 | Gray, octagonal, pyramidal tower. | USCG Light List (Pacific): 284 |
| 1952-1960 | NA | NA | Grey, octagonal, pyramidal tower. | USCG Light List - Vol. I-V: 301 | |
| 1961-1963 | USCG Light List - Vol. III: 301 | ||||
| 1964-1968 | USCG Light List - Vol. III: 651 | ||||
| 1969-1974 | Gray, octagonal, pyramidal tower. | ||||
| 1975-1982 | USCG Light List - Vol. III: 578 | ||||
| 1983-1984 | Gray, octagonal, tower. | ||||
| 1985 | USCG Light List - Vol. VI: 578 | ||||
| 1986 | Gray octagonal tower. | USCG Light List - Vol. VI: 4315 | |||
| 1988 | |||||
| 1990 | |||||
| Missing light lists for 1991-2003 | |||||
| 2004 | NA | NA | 214 | Gray octagonal tower. | USCG Light List - Vol. VI: 4315 |
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1881-1906 (Approximate location: Located about 100 feet north of the current 1911 lighthouse.) |
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1911-Present |