Crow R Mill Pond vs Green Lake
Water quality, depth, fish species, and recreation comparison.
Green Lake has a higher water quality grade (A, Excellent) than Crow R Mill Pond (C, Fair). 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 grades are meaningfully apart: Green Lake grades a A while Crow R Mill Pond grades a C. That two-letter spread reflects real underlying differences — different watershed inputs, different depth profiles, or different monitoring rigor.
For a recreational visitor, the wider grade gap is decisive — Green Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?
Crow R Mill Pond
Murky, only visible to about 6 ft.
Green Lake
Good clarity, visible to about 13.1 ft.
Side-by-Side Metrics
| Metric | Crow R Mill Pond | Green Lake |
|---|---|---|
| Overall Grade | C (Fair) | A (Excellent) |
| Water Clarity | 6 ft | 13.1 ft |
| Phosphorus | 24 µg/L | 14 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 14 ft | 110 ft |
| Surface Area | 2.3K acres | 5.6K acres |
| Public Access | Yes | Yes |
| Fish Species | 1 | 1 |
| Trophic State | eutrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Green Lake wins on overall water quality with a Grade A versus Crow R Mill Pond's Grade C. Water clarity: 13.1 ft vs 6 ft. For fishing diversity, Green Lake also leads with 1 species.