| Destruction Island Light | |
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| Location: | Destruction Island, Washington |
| Coordinates WGS-84 (GPS) |
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| Year first lit: | 1891 |
| Automated: | 1968 |
| Tower shape: | Conical |
| Height: | 94 ft |
| Original lens: | Fourth order Fresnel lens (removed) |
Destruction Island Lighthouse is a lighthouse on Destruction Island off the coast of Washington state in the north-west of the United States. Destruction Island (also known historically as Green Island) is a island located approximately off the Washington coast Washington ( is a state in the Pacific Northwest region of the United States. A geographic coordinate system enables every location on the Earth to be specified in three coordinates using mainly a spherical coordinate system. Basic concept of GPS operation A GPS receiver calculates its position by carefully timing the signals sent by the constellation of GPS Satellites high above the Earth A Fresnel lens (pronounced or) is a type of lens invented by French physicist Augustin-Jean Fresnel. A lighthouse is a Tower, building or framework designed to emit light from a system of lamps and lenses or in older times from a fire and used as an Destruction Island (also known historically as Green Island) is a island located approximately off the Washington coast Washington ( is a state in the Pacific Northwest region of the United States. The United States of America —commonly referred to as the
Construction on the Destruction Island Lighthouse began in 1888. The island was proposed as a site for a lighthouse years earlier, but a shortage of funds and shifting priorities delayed the project. After the 94-foot conical tower was complete, it was wrapped in a skin of iron to protect it from the elements. The fog signal was installed on 1891 and the five concentric wicks of the lamp were set afire for the first time. The Coast Guard assumed responsibility for the lighthouse in 1939 before it was automated in 1968. The Fresnel lens continued its countless revolutions until it was removed in 1995 and replaced with an automated beacon. The two keepers' dwellings are no longer standing. The only remaining companions to the lighthouse are two oil houses and the fog signal building.