Summit Lake
Lake County, Montana68 acresView mapDirections
No nutrient or algae sampling on record from Montana DEQ for this lake.
Summit Lake in Lake County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 68 acres.
Summit Lake is a 68-acre lake in Lake County, Montana.
Source: EPA Water Quality Portal sampling records, Montana DEQ. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Summit 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.
Water quality measurements for Summit Lake
These are the measurements Montana DEQ publishes for Summit 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 Summit Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
68 acres
Shoreline
1.5 mi
No bathymetric survey has been published for Summit Lake, so its depth is not documented here.
Stays via Stay22
Stays near Summit Lake
Compare lakeside cabins, hotels, and vacation rentals near Summit Lake in Lake 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 Summit Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Montana’s top lakes →
Follow Summit Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Summit Lake
Nearby Lakes in Lake County
Frequently asked questions about Summit Lake
Where is Summit Lake?
- Summit Lake is a lake in Lake County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Summit Lake?
- Summit Lake in Lake County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 68 acres.
Is Summit Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Summit Lake across LakeQuality
More lakes in Montana
Other Lakes in Montana
Where this data comes from
Measurements for Summit Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.