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Bad Medicine Lake reads lower on nutrients and algae than Wine Lake. Both are in Becker County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Bad Medicine Lake and Wine Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any differences in the readings here are about the lakes themselves, not the agencies sampling them. Bad Medicine Lake reads materially cleaner than Wine Lake on nutrients and algae. A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.

For a recreational visitor, the wider gap in the readings is decisive: Bad Medicine Lake has the lower nutrient and algae numbers. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

Bad Medicine Lake

Becker County, Minnesota

Crystal clear, you can see 25 ft down.

Wine Lake

Becker County, Minnesota

Murky, only visible to about 4.9 ft.

Side-by-Side Metrics

MetricBad Medicine LakeWine Lake
Water Clarity25 ft Better4.9 ft
Phosphorus6 µg/L Better32 µg/L
Chlorophyll-a (Algae)1.6 µg/L Better5.4 µg/L
Maximum Depth84 ft Better61 ft
Surface Area803 acres415 acres
Public AccessYesYes
Fish Species1316 Better
Trophic Stateoligotrophiceutrophic

A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.

Verdict

Bad Medicine Lake reads lower on nutrients and algae than Wine Lake. Water clarity: 25 ft vs 4.9 ft. For more fish-species variety, Wine Lake edges ahead with 16 documented species.

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Source: EPA National Aquatic Resource Surveys, 2026.