Crow R Mill Pond vs Green Lake
Water quality, depth, fish species, and recreation comparison.
Crow R Mill Pond and Green Lake read the same on nutrients and algae. Both are in Kandiyohi County, Minnesota.
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
Moderate clarity, visible to about 7 ft.
Green Lake
Good clarity, visible to about 14.1 ft.
Side-by-Side Metrics
| Metric | Crow R Mill Pond | Green Lake |
|---|---|---|
| Water Clarity | 7 ft | 14.1 ft Better |
| Phosphorus | 21 µg/L | 14 µg/L Better |
| Chlorophyll-a (Algae) | 6.7 µg/L | 4 µg/L Better |
| Maximum Depth | 14 ft | 110 ft Better |
| Surface Area | 2,290 acres | 5,569 acres |
| Public Access | Yes | Yes |
| Fish Species | 13 | 22 Better |
| Trophic State | mesotrophic | mesotrophic |
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.
Swap a lake
Compare Crow R Mill Pond or Green Lake against a different lake.
Verdict
Both lakes earn the same Grade A. 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.
Source: EPA National Aquatic Resource Surveys, 2026.