Where is Williams Coulee Reservoir?

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

Williams Coulee Reservoir

Phillips County, Montana26 acresView map Directions

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

Area

26 acres

Surface area

Shoreline

1.6 mi

Measured length

See the measurements Directions Where to stay

Williams Coulee Reservoir in Phillips County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 26 acres.

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Williams Coulee Reservoir is a 26-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 Williams Coulee 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.

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Water quality measurements for Williams Coulee Reservoir

These are the measurements Montana DEQ publishes for Williams Coulee 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 Williams Coulee Reservoir

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

Lake Details

Surface area

26 acres

Shoreline

1.6 mi

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

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Stays near Williams Coulee Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Williams Coulee 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 Williams Coulee Reservoir

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Fishing Williams Coulee Reservoir

→ Williams Coulee Reservoir fishing regulations (limits, seasons, special rules)

Nearby Lakes in Phillips County

West Alkali Reservoir3.3 miView →Reservoir Number One Hundred Sixty-one4.1 miView →Little Warm Reservoir10.8 miView →Wild Horse Reservoir9 miView →Nelson Reservoir11.1 miView →Solberg Slough9.4 miView →

Frequently asked questions about Williams Coulee Reservoir

Where is Williams Coulee Reservoir?: Williams Coulee 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 Williams Coulee Reservoir?: Williams Coulee Reservoir in Phillips County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Surface area: 26 acres.
Is Williams Coulee Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.