Fossil Lake
Carbon County, Montana133 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Fossil Lake in Carbon County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 133 acres.
Fossil Lake is a 133-acre lake in Carbon 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 Fossil 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 Fossil Lake
These are the measurements Montana DEQ publishes for Fossil 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 Fossil Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
133 acres
Shoreline
5.6 mi
No bathymetric survey has been published for Fossil Lake, so its depth is not documented here.
Stays via Stay22
Stays near Fossil Lake
Compare lakeside cabins, hotels, and vacation rentals near Fossil Lake in Carbon County, Montana — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Frequently asked questions about Fossil Lake
Where is Fossil Lake?
- Fossil Lake is a lake in Carbon County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Fossil Lake?
- Fossil Lake in Carbon County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 133 acres.
Is Fossil 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 Fossil Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.