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LakeQuality

Bad Medicine Lake vs Big Sugar Bush Lake

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

Bad Medicine Lake and Big Sugar Bush Lake both received the same overall water quality grade of A (Excellent). Both are in Becker County, Minnesota.

Bad Medicine Lake and Big Sugar Bush Lake are both in Minnesota — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. These two are within a letter of each other on the rubric — Bad Medicine Lake (A) versus Big Sugar Bush Lake (A). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.

A

Bad Medicine Lake

Becker County, Minnesota

Crystal clear, you can see 25 ft down.

A

Big Sugar Bush Lake

Becker County, Minnesota

Crystal clear, you can see 17 ft down.

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 LakeBig Sugar Bush Lake
Overall GradeA (Excellent)A (Excellent)
Water Clarity25 ft17 ft
Phosphorus6 µg/L10 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth84 ft42 ft
Surface Area803.03 acres521.51 acres
Public AccessYesYes
Fish Species11
Trophic Stateoligotrophicoligotrophic

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

Verdict

Both lakes earn the same Grade A. The tiebreakers come down to clarity (Bad Medicine Lake: 25 ft, Big Sugar Bush Lake: 17 ft) and what you want from the lake. Bad Medicine Lake matches its peer on species count.