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

Rein Lake

Sweet Grass County, Montana66 acresView map Directions

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

Area

66 acres

Surface area

Shoreline

1.5 mi

Measured length

See the measurements Directions Where to stay

Rein Lake in Sweet Grass County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 66 acres.

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Rein Lake is a 66-acre lake in Sweet Grass 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 Rein 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 Rein Lake

These are the measurements Montana DEQ publishes for Rein 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 Rein Lake

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

Lake Details

Surface area

66 acres

Shoreline

1.5 mi

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

Stays via Stay22

Stays near Rein Lake

Compare lakeside cabins, hotels, and vacation rentals near Rein Lake in Sweet Grass 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 Rein Lake

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Fishing Rein Lake

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

Nearby Lakes in Sweet Grass County

Lavold Reservoir—View →Upper Glaston Lake20.1 miView →Glass Lindsay Lakes Lower Reservoir—View →Lightning Lake—View →Jay Lake—View →Lake Pinchot—View →

Frequently asked questions about Rein Lake

Where is Rein Lake?: Rein Lake is a lake in Sweet Grass County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Rein Lake?: Rein Lake in Sweet Grass County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 66 acres.
Is Rein Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.