Where is Jasper Lake?

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

How deep is Jasper Lake?

Jasper Lake has a maximum depth of 77 feet and an average depth of 15 feet. The lake covers 36 acres.

Jasper Lake

Stillwater County, Montana36 acresView map Directions

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

Max depth

77 ft

Bathymetric survey

Area

36 acres

Surface area

Shoreline

1.2 mi

Measured length

77 ft max depth

See the measurements Directions Where to stay

Jasper Lake in Stillwater County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 77 ft. Surface area: 36 acres.

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Jasper Lake is a 36-acre lake in Stillwater County, Montana with a maximum depth of 77 feet (15-foot average).

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

What Jasper Lake is good for

From access and monitoring records, not editorial picks.

Deep water77 ft surveyed max depth

Swimming conditions

No reading

Not rated

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

Whether Jasper 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 Jasper Lake

These are the measurements Montana DEQ publishes for Jasper 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 Jasper Lake

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

Lake Details

Max depth

77 ft

Average depth

15 ft

Surface area

36 acres

Shoreline

1.2 mi

Stays via Stay22

Stays near Jasper Lake

Compare lakeside cabins, hotels, and vacation rentals near Jasper Lake in Stillwater 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 Jasper Lake

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Follow Jasper Lake’s readings

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Fishing Jasper Lake

→ Jasper Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Stillwater County

Barrier Lake6.6 miView →Silver Lake13 miView →Island Lake—View →Storm Lakes—View →Avalanche Lake—View →Mystic Lake—View →

Frequently asked questions about Jasper Lake

Where is Jasper Lake?: Jasper Lake is a lake in Stillwater County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Jasper Lake?: Jasper Lake in Stillwater County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 77 ft. Surface area: 36 acres.
Is Jasper Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Jasper Lake?: Jasper Lake has a maximum depth of 77 feet and an average depth of 15 feet. The lake covers 36 acres.