Isla de Mona (Puerto Rico)

Historical Light List Characteristics

1905 FFl W 120s. F20, Fl20. LHB Light List (Atlantic): 1286
1908 LHB Light List (Atlantic): 1426
1915 FFl W 120s. F21, Fl21. fl 4.5. Obscured 055°-181°(126°). Light illuminates entire horizon, but to observers with eye 15 feet above sea, light is obscured by high land of Mona Island, at distances greater than 9 miles, to geographic limit of visibility of light, from 55° to 181°. At distances less than 9 miles light is shut out from 45°. USLHS Light List (Atlantic): 2014
1917 FFl W 120s. F21, Fl21. fl 4.2. Obscured 055°-181°(126°). Light illuminates entire horizon, but to observers with eye 15 feet above sea, light is obscured by high land of Mona Island, at distances greater than 9 miles to geographic limit of visibility of light from 55° to 181°. At distances less than 9 miles light is shut out from 45°. USLHS Light List (Atlantic): 2193
1920 USLHS Light List (Atlantic): 2277
1927 USLHS Light List (Atlantic): 2606
1931 USLHS Light List (Atlantic): 3112
1935 USLHS Light List (Atlantic): 4055
1943 Fl(3) W 30s. W21. (fl 2, ec 3) x 2, fl 2, ec 18. Obscured 045°-181°(136°). USCG Light List (Atlantic): 4659
1945-1947
1950-1952
1953-1955 Fl(3) W 30s. W22. (fl 2, ec 3) x 2, fl 2, ec 18. Obscured 045°-181°(136°). USCG Light List - Vol. I-VI: 7388
1957
1959-1960 USCG Light List - Vol. I-V: 5498
1961 USCG Light List - Vol. II: 5498
1963
1965-1966
1969-1970 USCG Light List - Vol. II: 1423
1972
1973 Fl(3) W 30s. W18. (fl 2, ec 3) x 2, fl 2, ec 18. Obscured 045°-181°(136°). Light obscured by land from 045° to 181° when distances are less than 9 miles from the light. Within the obscured sector the light may be seen more than the bearing of 045° if the observer's height exceeds 15 feet and is more than 9 miles from the light.
1974 Fl(3) W 30s. W18. (fl 1, ec 4) x 2, fl 1, ec 19. Obscured 055°-185°(130°). Light obscured by land from 055° to 185° when distances are less than 15 miles from the light. Beyond 15 miles in this sector the light may be intermittently obscured due to hilly terrain.
1976
1978 Fl W 5s. W14. Light may be obscured by land masses when viewed from approximate bearings 140° to 270°. USCG Light List - Vol. II: 1423
1982
1990 USCG Light List - Vol. III: 26895
1994 USCG Light List - Vol. III: 27130
2004 Fl W 5s. W14. Light may be obscured by land masses when viewed from approximate bearings 140°and 270°. USCG Light List - Vol. III: 32295

Historical Light List Optics and Structures

1905 2nd 52 231 Hexagonal, pyramidal, black, skeleton, iron tower, with central stair-cylinder, and black lantern, connected to gray dwelling with red gable. LHB Light List (Atlantic): 1286
1908 Black, hexagonal, pyramidal, skeleton, iron tower, with central stair-cylinder, and black lantern, connected to white dwelling with red roof and green shutters. LHB Light List (Atlantic): 1426
1915 N/A 59 Black, hexagonal, pyramidal skeleton, with central stair cylinder; connected to white dwelling with red roof. USLHS Light List (Atlantic): 2014
1917 USLHS Light List (Atlantic): 2193
1920 USLHS Light List (Atlantic): 2277
1927 Black; hexagonal, pyramidal skeleton, with central stair cylinder; connected to white dwelling with red roof. USLHS Light List (Atlantic): 2606
1931 2 iov Black, hexagonal, pyramidal skeleton with central stair cylinder; connected to white dwelling with red roof. USLHS Light List (Atlantic): 3112
1935 USLHS Light List (Atlantic): 4055
1943 2 e USCG Light List (Atlantic): 4659
1945-1947
1950-1952
1953-1955 N/A Black, hexagonal pyramidal skeleton tower with central stair cylinder; connected to white dwelling with red roof. USCG Light List - Vol. I-VI: 7388
1957
1959-1960 USCG Light List - Vol. I-V: 5498
1961 USCG Light List - Vol. II: 5498
1963
1965-1966
1969-1970 USCG Light List - Vol. II: 1423
1972-1974
1976
1978 N/A 40 323 On steel tower. USCG Light List - Vol. II: 1423
1982
1990 USCG Light List - Vol. III: 26895
1994 N/A USCG Light List - Vol. III: 27130
2004 USCG Light List - Vol. III: 32295

Historical Light List Other Signals

1927 None USLHS Light List (Atlantic): 2606
1931 USLHS Light List (Atlantic): 3112
1935 USLHS Light List (Atlantic): 4055
1943 RADIOBEACON: Transmits on 296 kc groups of 3 dashes (). USCG Light List (Atlantic): 4659
1945 RADIOBEACON: Transmits on 296 kc groups of 3 dashes (). Antenna lead-in 40 feet 315° from light tower.
1946-1947 RADIOBEACON; Transmits on 296 kc groups of 3 dashes (). Antenna lead-in 40 yards 315° from light tower.
1950-1952
1953-1955 RADIOBEACON: 296 kc (Code: ). Antenna 40 yards 315° from light tower. USCG Light List - Vol. I-VI: 7388
1957
1959-1960 USCG Light List - Vol. I-V: 5498
1961 USCG Light List - Vol. II: 5498
1963 RADIOBEACON: Antenna 40 yards 315° from light tower.
1965-1966
1969-1970 USCG Light List - Vol. II: 1423
1972-1973
1974 None
1976
1978
1982
1990 USCG Light List - Vol. III: 26895
1994 USCG Light List - Vol. III: 27130
2004 USCG Light List - Vol. III: 32295
1900 - 1975
1976 - Present (Approximate location for modern light.)