Where is Lower Thompson Lake?

Lower Thompson Lake is a lake in Sanders County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.

Lower Thompson Lake

Sanders County, Montana214 acresView map Directions

No nutrient or algae sampling on record from Montana DEQ for this lake.

Area

214 acres

Surface area

See the measurements Directions Where to stay

Lower Thompson Lake in Sanders County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 214 acres.

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Lower Thompson Lake is a 214-acre lake in Sanders County, Montana.

Source: EPA Water Quality Portal sampling records, Montana DEQ. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Lower Thompson 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.

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Water quality measurements for Lower Thompson Lake

These are the measurements Montana DEQ publishes for Lower Thompson 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 Lower Thompson Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

214 acres

No bathymetric survey has been published for Lower Thompson Lake, so its depth is not documented here.

Stays via Stay22

Stays near Lower Thompson Lake

Compare lakeside cabins, hotels, and vacation rentals near Lower Thompson Lake in Sanders 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.

Top-rated places to stay near Lower Thompson Lake

Prices for Oct 9–11, 4 adults. Change dates on the map below.

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Follow Lower Thompson Lake’s readings

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Fishing Lower Thompson Lake

→ Lower Thompson Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Sanders County

Fishtrap Lake—View →Upper Dry Fork Reservoir—View →Dry Fork Reservoir—View →Noxon Reservoir—View →Thompson Falls Reservoir—View →Rainbow Lake—View →

Frequently asked questions about Lower Thompson Lake

Where is Lower Thompson Lake?: Lower Thompson Lake is a lake in Sanders County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Lower Thompson Lake?: Lower Thompson Lake in Sanders County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 214 acres.
Is Lower Thompson Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.