Skip to main content
LakeQuality

Long Lake vs Mule Lake

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

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

A

Long Lake

Cass County, Minnesota

Crystal clear, you can see 21.8 ft down.

A

Mule Lake

Cass County, Minnesota

Crystal clear, you can see 18.7 ft down.

Side-by-Side Metrics

MetricLong LakeMule Lake
Overall GradeA (Excellent)A (Excellent)
Water Clarity21.8 ft18.7 ft
Phosphorus9 µg/L9 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth115 ft47 ft
Surface Area1.0K acres524.58 acres
Public AccessYesYes
Fish Species1411
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 (Long Lake: 21.8 ft, Mule Lake: 18.7 ft) and what you want from the lake. Long Lake supports more documented fish species.