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

Sheridan County Lake Quality

Montana, 23 lakes, measured by Montana DEQ

There are 23 monitored lakes in Sheridan County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. The 23 monitored lakes in Sheridan 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 Sheridan County

Top-rated places to stay near Sheridan County

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Quick Answers for Sheridan County

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

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

All Lakes in Sheridan County

23 lakes · 0 ranked on readings, 23 without enough sampling0 lakes ranked on readings · 23 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
Lochin SloughSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Syme SloughSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Salt LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Brightsmen LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Park LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lone Tree LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Widgeon SloughSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Larson SloughSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Flat LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Gaulke LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
North LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Goose LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Tadpole LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Goose LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dominek LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Clear LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Brush LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samples65 ftNot recorded
Long LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Katy LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Medicine LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Homestead LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Capeneys LakeSheridanNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Boxelder LakeSheridanNo recent samplesNo 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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Other Counties in Montana

Missoula County

46 lakes

Carbon County

38 lakes

Yellowstone County

6 lakes

Flathead County

108 lakes

Big Horn County

4 lakes

Lake County

38 lakes

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.