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Great Captain Island Light

Greenwich, Connecticut  |  Historic lighthouse

Active aid in USCG Light ListNational RegisterAccess: verify before visiting

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About this lighthouse

The U.S. Coast Guard lists Great Captain Island Light in its current Light List as an aid to navigation, describing the structure as “NR on skeleton tower”. Light List entries describe the light for mariners; they do not say whether the site is open to visitors.

The structure is recorded in the National Register of Historic Places. A National Register listing documents historic significance. It does not mean the public can visit.

Awaiting verification: Wikidata gives 1868 as the year this station or structure was established. We have not yet confirmed this against a primary source, so it is not shown as a fact. See the Wikidata lead.

Facts panel

Sourced facts about Great Captain Island Light
Navigation statusListed as an aid to navigation in the current USCG Light List (LLNR 21400) [1]
Light characteristicAl WR 12s [1]
Focal height62 ft above water [1]
Nominal range14 nautical miles [1]
Structure (USCG description)NR on skeleton tower. [1]
National RegisterListed as “Great Captain Island Lighthouse” (NRIS 91000351), NPGallery record dated 4/3/1991 [2]
NRHP significant years1868 1905 [2]
NRHP areas of significanceEngineering Transportation [2]
CountyFairfield County
Coordinates40.98250, -73.62350 [3]

Getting there

Directions should target a legal public viewing location. We have not verified a public viewpoint or parking area for this light yet, so check the official source before you go.

Map © OpenStreetMap contributors. Open larger map. The pin marks the lighthouse position, not a parking area or a permitted viewpoint.

Accessibility

We have no verified accessibility information for this site yet. Contact the site manager before your visit if you need step-free access.

Nearby lights

Straight-line distance between lighthouse positions, not a driving time or route.

Sources

  1. Light List Vol. I entry LLNR 21400 “Great Captain Island Light” — U.S. Coast Guard Navigation Center (weekly edition 11/11/2026). https://www.navcen.uscg.gov/weekly-light-lists (checked 2026-11-11)
  2. National Register of Historic Places record 91000351: “Great Captain Island Lighthouse” — National Park Service, NPGallery (NRHP). https://npgallery.nps.gov/AssetDetail/NRIS/91000351 (checked 2026-11-11)
  3. Wikidata item Q3378237 (used as a lead for coordinates and identifiers) — Wikidata. https://www.wikidata.org/wiki/Q3378237 (checked 2026-11-11)
  4. Wikipedia article (background reading, not a primary source) — Wikipedia. https://en.wikipedia.org/wiki/Great_Captain_Island_Light (checked 2026-11-11)

Last checked November 11, 2026. Found an error or a closure? Send a correction.