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LakeQuality

Crystal Lake vs Eagle Lake

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

Crystal Lake and Eagle Lake both received the same overall water quality grade of F (Very Poor). Both are in Blue Earth County, Minnesota.

F

Crystal Lake

Blue Earth County, Minnesota

Very murky, less than 1.5 ft of visibility.

F

Eagle Lake

Blue Earth County, Minnesota

Very murky, less than 1 ft of visibility.

Side-by-Side Metrics

MetricCrystal LakeEagle Lake
Overall GradeF (Very Poor)F (Very Poor)
Water Clarity1.5 ft1 ft
Phosphorus172 µg/LNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth8 ft9 ft
Surface Area379.38 acres898.23 acres
Public AccessYesYes
Fish Species120
Trophic Statehypereutrophichypereutrophic

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

Verdict

Both lakes earn the same Grade F. The tiebreakers come down to clarity (Crystal Lake: 1.5 ft, Eagle Lake: 1 ft) and what you want from the lake. Crystal Lake supports more documented fish species.