Forrest Reservoir
Valley County, Montana32 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Forrest Reservoir in Valley County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 32 acres.
Forrest Reservoir is a 32-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 Forrest 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 Forrest Reservoir
These are the measurements Montana DEQ publishes for Forrest 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 Forrest Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
32 acres
No bathymetric survey has been published for Forrest Reservoir, so its depth is not documented here.
Stays via Stay22
Stays near Forrest Reservoir
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Frequently asked questions about Forrest Reservoir
Where is Forrest Reservoir?
- Forrest 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 Forrest Reservoir?
- Forrest Reservoir in Valley County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 32 acres.
Is Forrest 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 Forrest Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.