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Clearwater Lake reads lower on nutrients and algae than North Long Lake. Both are in Crow Wing County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Clearwater Lake and North Long 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 close: Clearwater Lake and North Long Lake sit within a narrow band of each other on phosphorus, chlorophyll-a and clarity. The per-parameter table below shows where the small differences actually live.

With readings 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.

Clearwater Lake

Crow Wing County, Minnesota

Good clarity, visible to about 13 ft.

North Long Lake

Crow Wing County, Minnesota

Crystal clear, you can see 15.1 ft down.

Side-by-Side Metrics

MetricClearwater LakeNorth Long Lake
Water Clarity13 ft15.1 ft Better
Phosphorus12 µg/L Better14 µg/L
Chlorophyll-a (Algae)3.7 µg/L2.7 µg/L Better
Maximum Depth54 ft97 ft Better
Surface Area905 acres6,190 acres
Public AccessYesYes
Fish Species1618 Better
Trophic Statemesotrophicmesotrophic

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

Clearwater Lake and North Long Lake read the same on nutrients and algae overall. The tiebreakers come down to clarity (Clearwater Lake: 13 ft, North Long Lake: 15.1 ft) and what you want from the lake. Clearwater Lake has fewer fish species than North Long Lake.

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Source: EPA National Aquatic Resource Surveys, 2026.