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

Mason County Lake Quality

Michigan, 31 lakes, measured by EGLE

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. 3 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Most monitored lakes in Mason County carry favourable nutrient and algae readings for Michigan.

The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Gun Lake.

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Where to stay near Mason County

Top-rated places to stay near Mason County

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Quick Answers for Mason County

Cleanest lakes in Mason County →Cleanest lakes in Michigan →Best swimming lakes in Michigan →

Planning a trip? Check special fishing regulations for Gun Lake, whether the fish are safe to eat, and the best times to fish — or check the official Michigan fishing regulations.

Fishing in Mason County

Mason County Fishing Guide

Fish species and the cleanest lakes in Mason County

All Lakes in Mason County

31 lakes · 3 ranked on readings, 28 without enough sampling3 lakes ranked on readings · 28 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
1Gun LakeMason14 ft9 µg/L2.2 µg/LNo recent samples22 ft✓ Public
2Upper Hamlin LakeMason6 ft29 µg/L6.2 µg/LNo recent samplesNo recent samplesNot recorded
3Lower Hamlin LakeMason11.5 ft26 µg/L3.3 µg/LNo recent samplesNo recent samples✓ Public
Hamlin LakeMason9 ftNo recent samplesNo recent samplesNo recent samples65 ft✓ Public
Chancellor LakeMason26 ftNo recent samplesNo recent samplesNo recent samples50 ftNot recorded
Hoags LakeMason11.5 ftNo recent samplesNo recent samplesNo recent samples18 ft✓ Public
Thunder LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples30 ftNot recorded
Ford LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples80 ft✓ Public
Round LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples10 ftNot recorded
Tallman LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples5 ft✓ Public
Hackert LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples15 ft✓ Public
Lincoln LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples13 ftNot recorded
Long LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples33 ftNot recorded
Pere Marquette LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples38 ft✓ Public
Emerson LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples37 ftNot recorded
Ludington Storage ReseMasonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Hopkins LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples25 ftNot recorded
Eden LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples38 ftNot recorded
Woodruff LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples37 ftNot recorded
Pleiness LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples38 ftNot recorded
North Oxbow LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples27 ftNot recorded
Bass LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples45 ftNot recorded
Saint Marys LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples20 ftNot recorded
Bartons LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples21 ftNot recorded
Cartier LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Gooseneck LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples20 ftNot recorded
Batcheller LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Casin LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samples5 ftNot recorded
Picnic LakeMasonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lost LakesMasonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
South Oxbow LakeMasonNo 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 Michigan

Dickinson County

43 lakes

Clare County

47 lakes

Ogemaw County

50 lakes

Cheboygan County

31 lakes

Roscommon County

26 lakes

Gladwin County

29 lakes

Browse every Michigan 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 Michigan Department of Environment, Great Lakes, and Energy (EGLE). See data sources.