Lake Agnes
Beaverhead County, Montana109 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
- 59 ft max depth
Lake Agnes in Beaverhead County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 59 ft. Surface area: 109 acres.
Lake Agnes is a 109-acre lake in Beaverhead County, Montana with a maximum depth of 59 feet.
Source: EPA Water Quality Portal sampling records, Montana DEQ. Methodology: how these readings are compared.
What Lake Agnes is good for
From access and monitoring records, not editorial picks.
- Deep water59 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 Lake Agnes 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 Lake Agnes
These are the measurements Montana DEQ publishes for Lake Agnes, 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 Lake Agnes
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
59 ft
Surface area
109 acres
Shoreline
2.3 mi
Stays via Stay22
Stays near Lake Agnes
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Top-rated places to stay near Lake Agnes
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Fishing Lake Agnes
Nearby Lakes in Beaverhead County
Frequently asked questions about Lake Agnes
Where is Lake Agnes?
- Lake Agnes is a lake in Beaverhead County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Lake Agnes?
- Lake Agnes in Beaverhead County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 59 ft. Surface area: 109 acres.
Is Lake Agnes safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lake Agnes?
- Lake Agnes has a maximum depth of 59 feet. The lake covers 109 acres.
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Where this data comes from
Measurements for Lake Agnes come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.