Trinidad Head Light (CA)
Historical Light List Characteristics
| Year | Characteristic | Reference Number |
| Missing light lists prior to 1881 | ||
| 1881 | AlF W Fl R 60s. W17, R17. | LHB Light List (Dist. 12): NA |
| Missing light lists for 1882-1885 | ||
| 1886-1888 | AlF W Fl R 60s. W17.25, R17.25. | LHB Light List (Dist. 12): NA |
| Missing light lists for 1889-1891 | ||
| 1892 | AlF W Fl R 60s. W17.25, R17.25. | LHB Light List (Dist. 12-13): 860 |
| 1893 | LHB Light List (Dist. 12-13): 886 | |
| 1894 | LHB Light List (Dist. 12-13): 903 | |
| 1895 | LHB Light List (Dist. 12-13): 919 | |
| 1896 | LHB Light List (Dist. 12-13): 1020 | |
| Missing light lists for 1897-1899 | ||
| 1900 | AlF W Fl R 60s. W17.25, R17.25. | LHB Light List (Dist. 12-13): 50 |
| Missing light lists for 1901-1905 | ||
| 1906 | AlF W Fl R 60s. W17.25, R17.25. | LHB Light List (Dist. 12-13): 67 |
| Missing light lists for 1907-1910 | ||
| 1911 | AlF W Fl R 60s. W17, R17. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | ||
| 1914 | Fl(3) W 20s. W20. (fl 0.5, ec 3) x 2, fl 0.5, ec 12.5. | USLHS Light List (Pacific): 103 |
| Missing light lists for 1915-1929 | ||
| 1930-1933 | Fl(3) W 20s. W20. (fl 0.5, ec 3) x 2, fl 0.5, ec 12.5. | USLHS Light List (Pacific): 286 |
| Missing light lists for 1934-1944 | ||
| 1945 | Fl(3) W 20s. W20. (fl 0.5, ec 3) x 2, fl 0.5, ec 12.5. | USCG Light List (Pacific): 753 |
| Missing light lists for 1946-1949 | ||
| 1950-1951 | Fl(3) W 20s. W20. (fl 2, ec 2) x 2, fl 2, ec 10. Obscured northward of 140 degrees. | USCG Light List (Pacific): 753 |
| 1952-1960 | USCG Light List - Vol. I-V: 240 | |
| 1961-1963 | USCG Light List - Vol. III: 240 | |
| 1964-1972 | USCG Light List - Vol. III: 66 | |
| 1973-1974 | Oc W 4s. W14. ec 1. Obscured northward of 140 degrees. | |
| 1975-1984 | USCG Light List - Vol. III: 74 | |
| 1985 | Oc W 4s. W14. Obscured northward of 140 degrees. | USCG Light List - Vol. VI: 74 |
| 1986 | USCG Light List - Vol. VI: 525 | |
| 1988 | ||
| 1990 | ||
| Missing light lists for 1991-2003 | ||
| 2004 | Oc W 4s. W14. Obscured northward of 140 degrees. | USCG Light List - Vol. VI: 525 |
Historical Light List Optics and Structures
| Year | Optic | Tower Height | Focal Plane | Description | Reference Number |
| Missing light lists prior to 1881 | |||||
| 1881 | 4th | 18 | NA | White; dome and railing, red. Pyramidal tower. | LHB Light List (Dist. 12): NA |
| Missing light lists for 1882-1885 | |||||
| 1886 | NA | 18 | NA | White; lantern, dome and railing, red. Pyramidal tower. | LHB Light List (Dist. 12): NA |
| 1887-1888 | White; lantern, dome and railing, black. Pyramidal tower. | ||||
| Missing light lists for 1889-1891 | |||||
| 1892 | 4th | 18 | NA | White pyramidal tower; lantern, black. | LHB Light List (Dist. 12-13): 860 |
| 1893 | 198 | LHB Light List (Dist. 12-13): 886 | |||
| 1894 | LHB Light List (Dist. 12-13): 903 | ||||
| 1895 | LHB Light List (Dist. 12-13): 919 | ||||
| 1896 | LHB Light List (Dist. 12-13): 1020 | ||||
| Missing light lists for 1897-1899 | |||||
| 1900 | 4th | 18 | 196 | White pyramidal tower; lantern, black. | LHB Light List (Dist. 12-13): 50 |
| Missing light lists for 1901-1905 | |||||
| 1906 | 4th | 18 | 196 | White, pyramidal tower; lantern, black. | LHB Light List (Dist. 12-13): 67 |
| Missing light lists for 1907-1910 | |||||
| 1911 | 4th | NA | NA | White. Pyramidal tower. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | |||||
| 1914 | NA | 18 | 196 | White; pyramidal tower. | USLHS Light List (Pacific): 103 |
| Missing light lists for 1915-1929 | |||||
| 1930-1933 | 4 iov | 25 | 196 | White pyramidal tower. | USLHS Light List (Pacific): 286 |
| Missing light lists for 1934-1944 | |||||
| 1945 | 4 iov | 25 | 196 | White pyramidal tower. | USCG Light List (Pacific): 753 |
| Missing light lists for 1946-1949 | |||||
| 1950-1951 | 375 mm e | 25 | 196 | White pyramidal tower. | USCG Light List (Pacific): 753 |
| 1952-1960 | NA | USCG Light List - Vol. I-V: 240 | |||
| 1961-1963 | USCG Light List - Vol. III: 240 | ||||
| 1964-1974 | USCG Light List - Vol. III: 66 | ||||
| 1975-1984 | USCG Light List - Vol. III: 74 | ||||
| 1985 | USCG Light List - Vol. VI: 74 | ||||
| 1986 | White square tower. | USCG Light List - Vol. VI: 525 | |||
| 1988 | |||||
| 1990 | |||||
| Missing light lists for 1991-2003 | |||||
| 2004 | NA | NA | 196 | NA | USCG Light List - Vol. VI: 525 |
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1871-Present |