Upper Crater Lake
Big Horn County, Wyoming37 acresView mapDirections
No nutrient or algae sampling on record from Wyoming DEQ for this lake.
Upper Crater Lake in Big Horn County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Surface area: 37 acres.
Upper Crater Lake is a 37-acre lake in Big Horn County, Wyoming.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Upper Crater Lake is safe to swim in today is a call for the Wyoming Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Upper Crater Lake
These are the measurements Wyoming DEQ publishes for Upper Crater 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.
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Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
37 acres
Shoreline
1 mi
No bathymetric survey has been published for Upper Crater Lake, so its depth is not documented here.
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Stays near Upper Crater Lake
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Frequently asked questions about Upper Crater Lake
Where is Upper Crater Lake?
- Upper Crater Lake is a lake in Big Horn County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Upper Crater Lake?
- Upper Crater Lake in Big Horn County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Surface area: 37 acres.
Is Upper Crater Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Upper Crater Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.