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Cass Lake Pike Bay reads lower on nutrients and algae than Little Wolf Lake. Both are in Cass County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Cass Lake Pike Bay and Little Wolf Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any differences in the readings here are about the lakes themselves, not the agencies sampling them. The readings are meaningfully apart: Cass Lake Pike Bay carries clearly lower phosphorus and chlorophyll-a readings than Little Wolf Lake. A spread that wide reflects real underlying differences, in watershed inputs, depth profiles, or monitoring rigor.

For a recreational visitor, the wider gap in the readings is decisive: Cass Lake Pike Bay has the lower nutrient and algae numbers. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

Cass Lake Pike Bay

Cass County, Minnesota

Good clarity, visible to about 13.6 ft.

Little Wolf Lake

Cass County, Minnesota

Moderate clarity, visible to about 7 ft.

Side-by-Side Metrics

MetricCass Lake Pike BayLittle Wolf Lake
Water Clarity13.6 ft Better7 ft
Phosphorus10.5 µg/L Better26.5 µg/L
Chlorophyll-a (Algae)3.4 µg/L Better12.7 µg/L
Maximum Depth95 ft Better24 ft
Surface Area4,756 acres525 acres
Public AccessYesYes
Fish Species20 Better13
Trophic Statemesotrophiceutrophic

A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.

Verdict

Cass Lake Pike Bay reads lower on nutrients and algae than Little Wolf Lake. Water clarity: 13.6 ft vs 7 ft. For fishing diversity, Cass Lake Pike Bay also leads with 20 species.

Source: EPA National Aquatic Resource Surveys, 2026.