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LakeQuality

Little Wolf Lake vs Long Lake

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

Long Lake has a higher water quality grade (A, Excellent) than Little Wolf Lake (B, Good). Both are in Cass County, Minnesota.

Both Little Wolf Lake and Long 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. These two are within a letter of each other on the rubric — Little Wolf Lake (B) versus Long 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.

B

Little Wolf Lake

Cass County, Minnesota

Moderate clarity, visible to about 9.3 ft.

A

Long Lake

Cass County, Minnesota

Crystal clear, you can see 21.5 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.

MetricLittle Wolf LakeLong Lake
Overall GradeB (Good)A (Excellent)
Water Clarity9.3 ft21.5 ft
Phosphorus25 µg/L9 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth24 ft115 ft
Surface Area524.59 acres1.0K acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophicoligotrophic

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

Verdict

Long Lake wins on overall water quality with a Grade A versus Little Wolf Lake's Grade B. Water clarity: 21.5 ft vs 9.3 ft. For fishing diversity, Long Lake also leads with 1 species.