Año Nuevo Island (California)
Historical Light List Characteristics
| 1892 | F W. | LHB Light List (Dist. 12-13): 838 |
| 1893 | LHB Light List (Dist. 12-13): 862 | |
| 1894 | LHB Light List (Dist. 12-13): 879 | |
| 1895 | LHB Light List (Dist. 12-13): 895 | |
| 1896 | LHB Light List (Dist. 12-13): 996 | |
| 1900 | LHB Light List (Dist. 12-13): 18 | |
| 1906 | LHB Light List (Dist. 12-13): 22 | |
| 1911 | USLHS Light List (16th-18th): N/A | |
| 1914 | Oc W 20s. W14. ec 5. | USLHS Light List (Pacific): 29 |
| 1930-1933 | Iso W 20s. W14. | USLHS Light List (Pacific): 75 |
| 1945 | Fl(3) W 60s. W14. (fl 2, ec 2) x 2, fl 2, ec 50. | USCG Light List (Pacific): 219 |
Historical Light List Optics and Structures
| 1892 | Lens Lantern | 4 | N/A | Lens lantern on post in front of fog signal house. | LHB Light List (Dist. 12-13): 838 |
| 1893 | 24 | LHB Light List (Dist. 12-13): 862 | |||
| 1894 | LHB Light List (Dist. 12-13): 879 | ||||
| 1895 | LHB Light List (Dist. 12-13): 895 | ||||
| 1896 | LHB Light List (Dist. 12-13): 996 | ||||
| 1900 | 22 | LHB Light List (Dist. 12-13): 18 | |||
| 1906 | Lens lantern in small structure in front of fog signal house. | LHB Light List (Dist. 12-13): 22 | |||
| 1911 | N/A | N/A | White. Lantern in small structure. | USLHS Light List (16th-18th): N/A | |
| 1914 | N/A | 4 | 65 | White; hexagonal tankhouse. | USLHS Light List (Pacific): 29 |
| 1930-1933 | 4 iov | 49 | 73 | White, square, pyramidal, skeleton tower. | USLHS Light List (Pacific): 75 |
| 1945 | 4 e | USCG Light List (Pacific): 219 |
Historical Light List Audible Fog Signals
| 1892 | 12-inch steam whistle; blasts, 10 sec.; silent intervals, 55 sec. | None | LHB Light List (Dist. 12-13): 838 |
| 1893 | 12-inch steam whistle; blasts 10 sec., silent intervals 55 sec. | LHB Light List (Dist. 12-13): 862 | |
| 1894 | LHB Light List (Dist. 12-13): 879 | ||
| 1895 | LHB Light List (Dist. 12-13): 895 | ||
| 1896 | LHB Light List (Dist. 12-13): 996 | ||
| 1900 | LHB Light List (Dist. 12-13): 18 | ||
| 1906 | LHB Light List (Dist. 12-13): 22 | ||
| 1911 | None | USLHS Light List (16th-18th): N/A | |
| 1914 | 1st-cl. air siren; group of 2 blasts every 37 sec.: 1st blast 2 sec. Silent 3 sec. 2d blast 2 sec. Silent 30 sec. | USLHS Light List (Pacific): 29 | |
| 1930-1933 | SIREN, 1st-cl. air; gp. 3 blasts every 60 sec.; 3 blasts 2 sec. each, 2 silences 1 sec each, 1 silence 52 sec. | USLHS Light List (Pacific): 75 | |
| 1945 | DIAPHONE, air, two-tone; group of 3 blasts every 60 sec.; blast 2 sec., silent 2 sec., blast 2 sec., silent 2 sec., blast 2 sec., silent 50 sec. | Siren if diaphone is disabled. | USCG Light List (Pacific): 219 |
 |
1890 - 1948 (Assumed the original 1890 lighthouse was located close to the position of the exisiting inactive lighthouse.) |