Collins Reservoir
Valley County, Montana58 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Collins Reservoir in Valley County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 58 acres.
Collins Reservoir is a 58-acre lake in Valley 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 Collins Reservoir 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 Collins Reservoir
These are the measurements Montana DEQ publishes for Collins Reservoir, 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 Collins Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
58 acres
Shoreline
3.6 mi
No bathymetric survey has been published for Collins Reservoir, so its depth is not documented here.
Stays via Stay22
Stays near Collins Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Collins Reservoir in Valley 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 Collins Reservoir
Where is Collins Reservoir?
- Collins Reservoir is a lake in Valley County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Collins Reservoir?
- Collins Reservoir in Valley County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 58 acres.
Is Collins Reservoir 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 Collins Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.