Mentasta Lake
Copper River County, Alaska1,103 acresView mapDirections
No nutrient or algae sampling on record from Alaska DEC for this lake.
- 39 ft mean depth (modelled)
Mentasta Lake in Copper River County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 1103 acres.
Mentasta Lake is a 1,103-acre lake in Copper River County, Alaska with an estimated average depth of about 39 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
What Mentasta Lake is good for
From access and monitoring records, not editorial picks.
- Big water1,103 acres
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mentasta 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.
Water quality measurements for Mentasta Lake
These are the measurements Alaska DEC publishes for Mentasta 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 Mentasta Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Mean depth
~39 ft est.
Surface area
1,103 acres
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Alaska has not published bathymetry for Mentasta Lake.
Lake Size & Watershed
Watershed (drainage) area
202 sq mi
HydroLAKES / HydroSHEDS
Mean depth
~39 ft est.
Modelled from terrain, not sounded
Shoreline
12.2 mi
HydroLAKES / HydroSHEDS
Elevation
2,221 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 Mentasta Lake
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Fishing Mentasta Lake
Nearby Lakes in Copper River County
Frequently asked questions about Mentasta Lake
Where is Mentasta Lake?
- Mentasta Lake is a lake in Copper River County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.
What is the water quality of Mentasta Lake?
- Mentasta Lake in Copper River County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 1103 acres.
Is Mentasta Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Mentasta Lake?
- No published bathymetric survey covers Mentasta Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 39 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 1103 acres.
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Where this data comes from
Measurements for Mentasta Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)