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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Phillips County Lake Quality

Montana, 42 lakes, measured by Montana DEQ

The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. The 42 monitored lakes in Phillips County carry whatever clarity, phosphorus, and chlorophyll-a readings Montana DEQ has published, shown as reported.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.

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Where to stay near Phillips County

Top-rated places to stay near Phillips County

Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.

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Quick Answers for Phillips County

Cleanest lakes in Phillips County →Cleanest lakes in Montana →Best swimming lakes in Montana →

Planning a trip? Check special fishing regulations for Phillips Reservoir — or check the official Montana fishing regulations.

All Lakes in Phillips County

42 lakes · 0 ranked on readings, 42 without enough sampling0 lakes ranked on readings · 42 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
Phillips ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rock Creek ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dry LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Buckley LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Whitcomb LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Shed LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Beam LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
First Creek ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Stratton ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Indian LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dry LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Veseth ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Veseth FlatPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Parrot LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Ester LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Little Warm ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Wild Horse ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Weigand ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Point of Rocks ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Bennett LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Solberg SloughPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
West Alkali ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Reservoir Number One Hundred Sixty-onePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Williams Coulee ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Nelson ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
LeNoir ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Goose Island PondPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Drumbo UnitPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake BowdoinPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Teal Pond ComplexPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dry Lake UnitPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mud LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lakeside UnitPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lakeside UnitPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Erphit LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hewitt LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Big McNeil SloughPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Carter LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
McChesney ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Frenchman ReservoirPhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Austin LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pea LakePhillipsNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Browse every Montana lake, or the full directory of lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: the Montana Department of Environmental Quality. See data sources.