{"nrhp_refnum":"06000635","name":"Latimer Reef Light Station","other_names":[],"category":"building","location":{"address":"In Fisher's Island Sound, one mi NW of East Point on Fisher's Island","address_restricted":false,"city":"Fisher's Island","county":"Suffolk County","state":"NY","lat":41.304458742000065,"lon":-71.93332498699993,"geom_source":"nps_gis"},"listed_date":"2006-07-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Maritime History","Transportation","Architecture","Engineering"],"significance_levels":["local"],"summary":{"what_it_is":"A cast-iron \"sparkplug\" type lighthouse completed in 1884 on Latimer Reef in Fishers Island Sound, about one mile north-northwest of East Point on Fishers Island, Suffolk County, New York.","why_significant":"The nomination marks it significant under Criterion A in maritime history and transportation, with architecture and engineering also listed as areas of significance. It served as a manned aid to navigation from 1884 until automation in 1974, and it survives as an example of the sparkplug lighthouse type built by the U.S. Lighthouse Board.","narrative":"Latimer Reef Light Station is a cast-iron lighthouse completed in 1884 in about 18 feet of water at the western end of Latimer Reef, roughly one mile north-northwest of East Point on Fishers Island. It belongs to the \"sparkplug\" type, named for its resemblance to a spark plug seen from afar. A 30-foot brown caisson filled with concrete and ringed by riprap supports a 46-foot superstructure: a four-story conical tower, a cylindrical watch room and a ten-sided lantern. The interior is lined with brick up to the third story, and a winding cast-iron stair rises through the tower. Over time the iron awning, smoke stack, fog bell, coal bin shed and privy have disappeared, and modern fixtures have been added. Resident keepers lived at the station until it was automated in 1974. Its significance rests on its role in maritime history and transportation, with architecture and engineering also noted, between 1884 and 1954. It remains an active aid to navigation owned by the Coast Guard.","period_of_significance":"1884-1954","architect_builder":"U.S. Lighthouse Board","architectural_style":"No Style","criteria":["A"],"status_note":"Active aid to navigation owned by the U.S. Coast Guard; automated in 1974 and reachable only by boat.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:52.61689-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_AK/06000635.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/06000635/2e9c48efcb-800.webp","url_1600":"https://nationalhistoricalregister.com/media/06000635/2e9c48efcb-1600.webp","licence":"CC BY-SA 3.0","author":"Rhvanwinkle (talk). Original uploader was Rhvanwinkle at en.wikipedia","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Latimer_Reef_Light_1.jpg\" rel=\"noopener\">Rhvanwinkle (talk). Original uploader was Rhvanwinkle at en.wikipedia</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Latimer_Reef_Light_1.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75325199","wikipedia":"https://en.wikipedia.org/wiki/Latimer_Reef_Light","wikidata":"https://www.wikidata.org/wiki/Q6496156"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/suffolk-county/latimer-reef-light-station-06000635/"}