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Green Lake reads lower on nutrients and algae than Crow R Mill Pond. Both are in Kandiyohi County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Crow R Mill Pond and Green Lake are both in Minnesota — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The readings are close: Crow R Mill Pond and Green 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.

Crow R Mill Pond

Kandiyohi County, Minnesota

Moderate clarity, visible to about 7 ft.

Green Lake

Kandiyohi County, Minnesota

Good clarity, visible to about 14.1 ft.

Side-by-Side Metrics

MetricCrow R Mill PondGreen Lake
Water Clarity7 ft14.1 ft Better
Phosphorus21 µg/L14 µg/L Better
Chlorophyll-a (Algae)6.7 µg/L4 µg/L Better
Maximum Depth14 ft110 ft Better
Surface Area2,290 acres5,569 acres
Public AccessYesYes
Fish Species1322 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

Crow R Mill Pond and Green Lake read the same on nutrients and algae overall. The tiebreakers come down to clarity (Crow R Mill Pond: 7 ft, Green Lake: 14.1 ft) and what you want from the lake. Crow R Mill Pond has fewer fish species than Green Lake.

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Where to stay near Crow R Mill Pond and Green Lake

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Source: EPA National Aquatic Resource Surveys, 2026.