Skip to main content
LakeQuality

Little Warm Reservoir

Phillips County, Montana91 acresView mapDirections

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

Area
91 acres
Surface area
Shoreline
3.1 mi
Measured length

Little Warm Reservoir in Phillips County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 91 acres.

Loading map…

Little Warm Reservoir is a 91-acre lake in Phillips 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 Little Warm Reservoir 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 Little Warm Reservoir →

Water quality measurements for Little Warm Reservoir

These are the measurements Montana DEQ publishes for Little Warm Reservoir, 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 Little Warm Reservoir

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

Lake Details

Surface area

91 acres

Shoreline

3.1 mi

No bathymetric survey has been published for Little Warm Reservoir, so its depth is not documented here.

Stays via Stay22

Stays near Little Warm Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Little Warm Reservoir in Phillips 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 Little Warm Reservoir

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 Little Warm Reservoir’s readings

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


Or email

Fishing Little Warm Reservoir

Nearby Lakes in Phillips County

Frequently asked questions about Little Warm Reservoir

Where is Little Warm Reservoir?

Little Warm Reservoir is a lake in Phillips County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.

What is the water quality of Little Warm Reservoir?

Little Warm Reservoir in Phillips County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 91 acres.

Measurements on this page ↑

Is Little Warm Reservoir safe to swim in?

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

Swimming on this page ↑

Where this data comes from

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