Southampton Shoals (California)
Historical Light List Characteristics
| 1906 | F W. | LHB Light List (Dist. 12-13): 40 |
| 1911 | F W. W13. | USLHS Light List (16th-18th): N/A |
| 1914 | USLHS Light List (Pacific): 51 | |
| 1930-1933 | Fl W 3s. W12. fl 0.3. | USLHS Light List (Pacific): 138 |
| 1945 | Fl W 4s. W13. fl 1. | USCG Light List (Pacific): 426 |
| 1950-1951 | ||
| 1952-1956 | Fl W 4s. fl 1. | USCG Light List - Vol. I-V: 440 |
| 1957-1959 | USCG Light List - Vol. I-V: 436 | |
| 1960 | Fl W 15s. fl 2. | USCG Light List - Vol. I-V: 436 |
| 1961-1963 | USCG Light List - Vol. III: 436 | |
| 1964-1971 | USCG Light List - Vol. III: 795 | |
| 1972 | Fl W 5s. | |
| 1973 | Fl W 5s. W15. | |
| 1974 | Iso R 6s. R6. | |
| 1975-1984 | USCG Light List - Vol. III: 716 | |
| 1985 | USCG Light List - Vol. VI: 716 | |
| 1986 | USCG Light List - Vol. VI: 5480 | |
| 1988 | ||
| 1990 | ||
| 2004 |
Historical Light List Optics and Structures
| 1906 | Lens Lantern | N/A | 521/2 | Black cylindrical lantern on a white, two-story, frame dwelling with red roof, dormers, and green window blinds, on a foundation of eleven, black, foundation cylinders. | LHB Light List (Dist. 12-13): 40 |
| 1911 | 5th | N/A | White. Square wooden building, on 11 iron piers. | USLHS Light List (16th-18th): N/A | |
| 1914 | N/A | 52 | White; square wooden building. | USLHS Light List (Pacific): 51 | |
| 1930-1933 | 5 a | White square wooden building on piers. | USLHS Light List (Pacific): 138 | ||
| 1945 | 5 e | USCG Light List (Pacific): 426 | |||
| 1950-1951 | |||||
| 1952-1956 | N/A | USCG Light List - Vol. I-V: 440 | |||
| 1957-1959 | USCG Light List - Vol. I-V: 436 | ||||
| 1960 | N/A | N/A | 32 | White cylindrical tower. | USCG Light List - Vol. I-V: 436 |
| 1961 | Tower. | USCG Light List - Vol. III: 436 | |||
| 1962-1963 | White cyclindrical tower. | ||||
| 1964-1974 | USCG Light List - Vol. III: 795 | ||||
| 1975-1984 | USCG Light List - Vol. III: 716 | ||||
| 1985 | USCG Light List - Vol. VI: 716 | ||||
| 1986 | USCG Light List - Vol. VI: 5480 | ||||
| 1988 | |||||
| 1990 | |||||
| 2004 |
Historical Light List Audible Fog Signals
| 1906 | 3,500-pound bell struck by machinery a double blow at intervals of 5 sec. and 15 sec. | None | LHB Light List (Dist. 12-13): 40 |
| 1911 | None | USLHS Light List (16th-18th): N/A | |
| 1914 | Bell; 2 strokes, silent 5 sec.; 2 strokes, silent 15 sec. | USLHS Light List (Pacific): 51 | |
| 1930-1933 | DIAPHONE, air; gp. 2 blasts every 30 sec.: Blast 2 sec., silent 6 sec., blast 2 sec., silent 20 sec. | Bell; gp. 2 strokes, silent 5 sec., gp. 2 strokes, silent 15 sec. if diaphone is disabled. | USLHS Light List (Pacific): 138 |
| 1945 | DIAPHONE, air; group of 2 blasts every 30 sec.; blast 2 sec., silent 6 sec., blast 2 sec., silent 20 sec. | USCG Light List (Pacific): 426 | |
| 1950-1951 | |||
| 1952-1956 | DIAPHONE: gp of 2 blasts ev 30s (2sbl-6ssi-2sbl-20ssi). | None | USCG Light List - Vol. I-V: 440 |
| 1957-1960 | USCG Light List - Vol. I-V: 436 | ||
| 1961-1963 | HORN, diaphragm; gp of 2 blasts ev 30s (2sbl-6ssi-2sbl-20ssi). | USCG Light List - Vol. III: 436 | |
| 1964-1968 | USCG Light List - Vol. III: 795 | ||
| 1969-1972 | HORN, diaphragm; 2 blasts ev 30s (2sbl-6ssi-2sbl-20ssi). | ||
| 1973 | HORN, 2 blasts ev 30s (2sbl-6ssi-2sbl-20ssi). | ||
| 1974 | HORN, 2 blasts ev 30s (2sbl-2ssi-2sbl-24ssi). | ||
| 1975 | USCG Light List - Vol. III: 716 | ||
| 1976-1980 | BELL: 1 stroke ev 10s. | ||
| 1981-1984 | BELL: 1 stroke ev 10s. | ||
| 1985 | USCG Light List - Vol. VI: 716 | ||
| 1986 | BELL: 1 stroke ev 10s. | USCG Light List - Vol. VI: 5480 | |
| 1988 | |||
| 1990 | |||
| 2004 | BELL: 1 stroke ev 10s. |
Historical Light List Other Signals
| 1930-1933 | None | USLHS Light List (Pacific): 138 |
| 1945 | USCG Light List (Pacific): 426 | |
| 1950-1951 | Special Radio Direction Finder Calibration Service (288 and 480 kHz, N2    ). |
|
| 1952-1956 | USCG Light List - Vol. I-V: 440 | |
| 1957-1960 | USCG Light List - Vol. I-V: 436 | |
| 1961-1963 | None | USCG Light List - Vol. III: 436 |
| 1964-1974 | USCG Light List - Vol. III: 795 | |
| 1975-1984 | USCG Light List - Vol. III: 716 | |
| 1985 | USCG Light List - Vol. VI: 716 | |
| 1986 | USCG Light List - Vol. VI: 5480 | |
| 1988 | ||
| 1990 | ||
| 2004 |
 |
1905 - Present (Approximate location: Modern light is on the pilings of the original 1905 lighthouse.) |