Skip to main content
LakeQuality

Oldman Lake

Glacier County, Montana43 acresView mapDirections

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

Max depth
55.8 ft
Bathymetric survey
Area
43 acres
Surface area
Shoreline
1 mi
Measured length
  • 56 ft max depth

Oldman Lake in Glacier County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 55.8 ft. Surface area: 43 acres.

Loading map…

Oldman Lake is a 43-acre lake in Glacier County, Montana with a maximum depth of 56 feet.

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

What Oldman Lake is good for

From access and monitoring records, not editorial picks.

  • Deep water55.8 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 Oldman 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 Oldman Lake →

Water quality measurements for Oldman Lake

These are the measurements Montana DEQ publishes for Oldman 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 Oldman Lake

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

Lake Details

Max depth

55.8 ft

Surface area

43 acres

Shoreline

1 mi

Stays via Stay22

Stays near Oldman Lake

Compare lakeside cabins, hotels, and vacation rentals near Oldman Lake in Glacier 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 Oldman Lake

Prices for Oct 16–18, 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 Oldman Lake’s readings

Email me when new measurements post for this lake. Updates stay free.


Or email

Fishing Oldman Lake

Nearby Lakes in Glacier County

Frequently asked questions about Oldman Lake

Where is Oldman Lake?

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

What is the water quality of Oldman Lake?

Oldman Lake in Glacier County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Maximum depth: 55.8 ft. Surface area: 43 acres.

Measurements on this page ↑

Is Oldman Lake safe to swim in?

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

Swimming on this page ↑

How deep is Oldman Lake?

Oldman Lake has a maximum depth of 55.8 feet. The lake covers 43 acres.

Where this data comes from

Measurements for Oldman Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.