Upper Seymour Lake
Deer Lodge County, Montana40 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
- 80 ft max depth
Upper Seymour Lake in Deer Lodge County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 80 ft. Surface area: 40 acres.
Upper Seymour Lake is a 40-acre lake in Deer Lodge County, Montana with a maximum depth of 80 feet.
Source: EPA Water Quality Portal sampling records, Montana DEQ. Methodology: how these readings are compared.
What Upper Seymour Lake is good for
From access and monitoring records, not editorial picks.
- Deep water80 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Upper Seymour 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 Seymour Lake
These are the measurements Montana DEQ publishes for Upper Seymour 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 Upper Seymour Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
80 ft
Surface area
40 acres
Shoreline
1 mi
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Fishing Upper Seymour Lake
Nearby Lakes in Deer Lodge County
Frequently asked questions about Upper Seymour Lake
Where is Upper Seymour Lake?
- Upper Seymour Lake is a lake in Deer Lodge 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 Seymour Lake?
- Upper Seymour Lake in Deer Lodge County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 80 ft. Surface area: 40 acres.
Is Upper Seymour Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Upper Seymour Lake?
- Upper Seymour Lake has a maximum depth of 80 feet. The lake covers 40 acres.
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Where this data comes from
Measurements for Upper Seymour Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.