Upper Waterton Lake
Glacier County, Montana988 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Upper Waterton Lake in Glacier County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 988 acres.
Upper Waterton Lake is a 988-acre lake in Glacier County, Montana.
Source: EPA Water Quality Portal sampling records, Montana 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 Waterton Lake is safe to swim in today is a call for the Montana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Upper Waterton Lake
These are the measurements Montana DEQ publishes for Upper Waterton 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
988 acres
Shoreline
7.3 mi
No bathymetric survey has been published for Upper Waterton Lake, so its depth is not documented here.
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Frequently asked questions about Upper Waterton Lake
Where is Upper Waterton Lake?
- Upper Waterton Lake is a lake in Glacier County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Upper Waterton Lake?
- Upper Waterton Lake in Glacier County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 988 acres.
Is Upper Waterton 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 Waterton Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.