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LakeQuality

Bad Medicine Lake vs Unnamed Lake

Water quality, depth, fish species, and recreation comparison.

Bad Medicine Lake has a higher water quality grade (A, Excellent) than Unnamed Lake (F, Very Poor). Both are in Becker County, Minnesota.

Both Bad Medicine Lake and Unnamed Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. Bad Medicine Lake (A) is materially cleaner than Unnamed Lake (F). 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 grade gap is decisive — Bad Medicine Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

A

Bad Medicine Lake

Becker County, Minnesota

Crystal clear, you can see 25 ft down.

F

Unnamed Lake

Becker County, Minnesota

Very murky, less than 2.4 ft of visibility.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricBad Medicine LakeUnnamed Lake
Overall GradeA (Excellent)F (Very Poor)
Water Clarity25 ft2.4 ft
Phosphorus6 µg/LNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth84 ft76 ft
Surface Area803.03 acres994.71 acres
Public AccessYesYes
Fish Species11
Trophic Stateoligotrophiceutrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Bad Medicine Lake wins on overall water quality with a Grade A versus Unnamed Lake's Grade F. Water clarity: 25 ft vs 2.4 ft. For fishing diversity, Bad Medicine Lake also leads with 1 species.