Four Horns Lake
Glacier County, Montana719 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Four Horns Lake in Glacier County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 719 acres.
Four Horns Lake is a 719-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 Four Horns 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 Four Horns Lake
These are the measurements Montana DEQ publishes for Four Horns 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
719 acres
Shoreline
6.5 mi
No bathymetric survey has been published for Four Horns Lake, so its depth is not documented here.
Stays via Stay22
Stays near Four Horns Lake
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Frequently asked questions about Four Horns Lake
Where is Four Horns Lake?
- Four Horns 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 Four Horns Lake?
- Four Horns Lake in Glacier County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 719 acres.
Is Four Horns 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 Four Horns Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.