Isle Au Haut Light

Isle Au Haut, Maine | Historic lighthouse

Active aid in USCG Light ListNational RegisterAccess: verify before visiting

About this lighthouse

The U.S. Coast Guard lists Isle Au Haut Light in its current Light List as an aid to navigation, describing the structure as “Tower, lower part conical, gray: upper part cylindrical, white brick; white bridge to shore”. 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 1907 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 Isle Au Haut Light
Navigation status	Listed as an aid to navigation in the current USCG Light List (LLNR 3360) [1]
Light characteristic	Fl R 4s [1]
Focal height	48 ft above water [1]
Nominal range	6 nautical miles [1]
Structure (USCG description)	Tower, lower part conical, gray: upper part cylindrical, white brick; white bridge to shore. [1]
National Register	Listed as “Isle Au Haut Light Station” (NRIS 87002265), NPGallery record dated 1/21/1988 [2]
NRHP significant years	1907 [2]
NRHP areas of significance	Engineering Transportation Architecture [2]
County	Knox County
Coordinates	44.06474, -68.65138 [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.

Saddleback Ledge Light — 5.1 mi straight-line (Maine)
Deer Island Thorofare Light — 5.5 mi straight-line (Maine)
Goose Rocks Light — 10.1 mi straight-line (Maine)
Heron Neck Light — 10.8 mi straight-line (Maine)
Burnt Coat Harbor Light — 11.2 mi straight-line (Maine)

Sources

Light List Vol. I entry LLNR 3360 “Isle Au Haut Light” — U.S. Coast Guard Navigation Center (weekly edition 11/11/2026). https://www.navcen.uscg.gov/weekly-light-lists (checked 2026-11-11)
National Register of Historic Places record 87002265: “Isle Au Haut Light Station” — National Park Service, NPGallery (NRHP). https://npgallery.nps.gov/AssetDetail/NRIS/87002265 (checked 2026-11-11)
Wikidata item Q6083839 (used as a lead for coordinates and identifiers) — Wikidata. https://www.wikidata.org/wiki/Q6083839 (checked 2026-11-11)
Wikipedia article (background reading, not a primary source) — Wikipedia. https://en.wikipedia.org/wiki/Isle_au_Haut_Light (checked 2026-11-11)

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