Where is Harrison Lake?

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

Harrison Lake

Flathead County, Montana406 acresView map Directions

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

Area

406 acres

Surface area

Shoreline

6.1 mi

Measured length

See the measurements Directions Where to stay

Harrison Lake in Flathead County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 406 acres.

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Harrison Lake is a 406-acre lake in Flathead 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 Harrison 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 Harrison Lake

These are the measurements Montana DEQ publishes for Harrison 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 Harrison Lake

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

Lake Details

Surface area

406 acres

Shoreline

6.1 mi

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

Stays via Stay22

Stays near Harrison Lake

Compare lakeside cabins, hotels, and vacation rentals near Harrison Lake in Flathead 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 Harrison Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Fishing Harrison Lake

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

Nearby Lakes in Flathead County

Lincoln Lake5.1 miView →Lake Ellen Wilson5.9 miView →Fish Lake16.6 ft clear7.1 miView →Stanton Lake—View →Avalanche Lake—View →Hidden Lake—View →

Frequently asked questions about Harrison Lake

Where is Harrison Lake?: Harrison Lake is a lake in Flathead County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Harrison Lake?: Harrison Lake in Flathead County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 406 acres.
Is Harrison Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.