Sentinel Island Light
Lighthouse · Juneau County, Alaska
Sentinel Island Light is a lighthouse in Juneau County, Alaska. Alaska has 20 lighthouses on record at Wayfarrow, 3 of them in Juneau County.
It was built in 1935, in the interwar years, making it the 8th oldest of the 11 in Alaska with a recorded construction date; the tower stands about 51 feet tall (6th tallest of 9 measured in Alaska); the light characteristic is recorded as Fl W 10s (a white flash every 10 seconds); the structure is built of concrete.
Status check, 2026-11: The 1902 wooden lighthouse was replaced in 1933–35 by the current Art Deco concrete tower; 1902 is the station date, not the current structure. Sentinel Island Light is listed on the National Register of Historic Places. It stands at 58.5461° N, 134.9203° W.
Key facts
| Current structure built | 1935 |
|---|---|
| Tower height | 51 ft |
| Light characteristic | Fl W 10s |
| Material | concrete |
| Heritage designation | National Register of Historic Places listed place |
| National Register | Listed |
| Coordinates | 58.54611, -134.92028 |
Nearby places
- Vanderbilt Reef Beaconlighthouse · Juneau County · 4.7 mi
- Point Retreat Lightlighthouse · Hoonah-Angoon County · 9.4 mi
- Aukeghost town · Juneau County · 13.8 mi
- Amalgaghost town · Juneau County · 14.6 mi
- Fish Creekghost town · Juneau County · 19.1 mi
- Point Sherman Lightlighthouse · Juneau County · 22.9 mi
- New Bostonghost town · Juneau County · 24.1 mi
- Tsantikihinghost town · Juneau County · 25.4 mi
- Treadwellghost town · Juneau County · 28 mi
- Eldred Rock Lightlighthouse · Haines County · 31.3 mi
- Kunax̱sa.aanghost town · Hoonah-Angoon (CA) County · 33.5 mi
- Sikanasankianghost town · Juneau County · 35.1 mi
Questions
Where is Sentinel Island Light?
Sentinel Island Light is in Juneau County, Alaska, at 58.5461, -134.9203.
How many lighthouses are in Juneau County?
Juneau County, Alaska has 3 lighthouses on record at Wayfarrow.
- Wayfarrow status check (web sources) — Checked for current status (facts)
- Wayfarrow status check (web sources) — Checked for current status (facts)
- Wayfarrow status check (web sources) — Checked for current status (facts)
- Wayfarrow status check (web sources) — Checked for current status (facts)
- Wikidata — Wikidata item (CC0)
- National Register of Historic Places — National Register of Historic Places record (public-domain)
- Wikidata — Wikipedia article (linked as a source; text not used) (CC0)
Facts marked "approximately" carry an uncertain date in the source. Text on this page is generated from the sources above; no encyclopedia prose is copied. Last updated 2026-11-05.