Where is Barrier Lake?

Barrier 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 Barrier Lake?

Barrier Lake has a maximum depth of 130 feet. The lake covers 45 acres.

Barrier Lake

Stillwater County, Montana45 acresView map Directions

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

Max depth

130 ft

Bathymetric survey

Area

45 acres

Surface area

Shoreline

1.4 mi

Measured length

130 ft max depth

See the measurements Directions Where to stay

Barrier Lake in Stillwater County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 130 ft. Surface area: 45 acres.

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Barrier Lake is a 45-acre lake in Stillwater County, Montana with a maximum depth of 130 feet.

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

What Barrier Lake is good for

From access and monitoring records, not editorial picks.

Deep water130 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 Barrier 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.

Get alerts for Barrier Lake →

Water quality measurements for Barrier Lake

These are the measurements Montana DEQ publishes for Barrier 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 Barrier Lake

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

Lake Details

Max depth

130 ft

Surface area

45 acres

Shoreline

1.4 mi

Stays via Stay22

Stays near Barrier Lake

Compare lakeside cabins, hotels, and vacation rentals near Barrier 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 Barrier Lake

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Follow Barrier Lake’s readings

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Fishing Barrier Lake

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

Nearby Lakes in Stillwater County

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

Frequently asked questions about Barrier Lake

Where is Barrier Lake?: Barrier 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 Barrier Lake?: Barrier Lake in Stillwater County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 130 ft. Surface area: 45 acres.
Is Barrier Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Barrier Lake?: Barrier Lake has a maximum depth of 130 feet. The lake covers 45 acres.