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LakeQuality

Girl Lake vs Long Lake

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

Girl Lake and Long Lake both received the same overall water quality grade of A (Excellent). Both are in Cass County, Minnesota.

A

Girl Lake

Cass County, Minnesota

Crystal clear, you can see 17 ft down.

A

Long Lake

Cass County, Minnesota

Crystal clear, you can see 21.8 ft down.

Side-by-Side Metrics

MetricGirl LakeLong Lake
Overall GradeA (Excellent)A (Excellent)
Water Clarity17 ft21.8 ft
Phosphorus12 µg/L9 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth81 ft115 ft
Surface Area428.18 acres1.0K acres
Public AccessYesYes
Fish Species1814
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 (Girl Lake: 17 ft, Long Lake: 21.8 ft) and what you want from the lake. Girl Lake supports more documented fish species.