Where is Twin Island Lake?

Twin Island Lake is a lake in Yukon-Koyukuk County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.

How deep is Twin Island Lake?

No published bathymetric survey covers Twin Island Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 24 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 1132 acres.

Twin Island Lake

Yukon-Koyukuk County, Alaska1,132 acresView map Directions

No nutrient or algae sampling on record from Alaska DEC for this lake.

Mean depth

~24 ft est.

HydroLAKES model

Area

1,132 acres

Surface area

24 ft mean depth (modelled)

See the measurements Directions Where to stay

Twin Island Lake in Yukon-Koyukuk County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 1132 acres.

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Twin Island Lake is a 1,132-acre lake in Yukon-Koyukuk County, Alaska with an estimated average depth of about 24 feet.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

What Twin Island Lake is good for

From access and monitoring records, not editorial picks.

Big water1,132 acres

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Twin Island Lake is safe to swim in today is a call for the Alaska Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Twin Island Lake

These are the measurements Alaska DEC publishes for Twin Island Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Twin Island Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Mean depth

~24 ft est.

Surface area

1,132 acres

Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Alaska has not published bathymetry for Twin Island Lake.

Lake Size & Watershed

Watershed (drainage) area

17 sq mi

HydroLAKES / HydroSHEDS

Mean depth

~24 ft est.

Modelled from terrain, not sounded

Shoreline

20.3 mi

HydroLAKES / HydroSHEDS

Elevation

413 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

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Stays near Twin Island Lake

Compare lakeside cabins, hotels, and vacation rentals near Twin Island Lake in Yukon-Koyukuk County, Alaska — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

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Fishing Twin Island Lake

→ Twin Island Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Yukon-Koyukuk County

Three Lakes1.5 miView →Chloya Lake3.2 miView →Tlozhavun Lake13.4 miView →Burman Lake11.4 miView →Chissovun Lake13.1 miView →Hat Lie Lakes12.2 miView →

Frequently asked questions about Twin Island Lake

Where is Twin Island Lake?: Twin Island Lake is a lake in Yukon-Koyukuk County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.
What is the water quality of Twin Island Lake?: Twin Island Lake in Yukon-Koyukuk County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 1132 acres.
Is Twin Island Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Twin Island Lake?: No published bathymetric survey covers Twin Island Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 24 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 1132 acres.