Clearwater Lake vs Polly Lake
Water quality, depth, fish species, and recreation comparison.
Clearwater Lake has a higher water quality grade (A, Excellent) than Polly Lake (D, Poor). Both are in Lake County, Minnesota.
A
Clearwater Lake
Lake County, Minnesota
Crystal clear, you can see 18 ft down.
D
Polly Lake
Lake County, Minnesota
Murky, only visible to about 4.5 ft.
Side-by-Side Metrics
| Metric | Clearwater Lake | Polly Lake |
|---|---|---|
| Overall Grade | A (Excellent) | D (Poor) |
| Water Clarity | 18 ft | 4.5 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 46 ft | 21 ft |
| Surface Area | 640.18 acres | 485.24 acres |
| Public Access | No | No |
| Fish Species | 0 | 8 |
| Trophic State | oligotrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Clearwater Lake wins on overall water quality with a Grade A versus Polly Lake's Grade D. Water clarity: 18 ft vs 4.5 ft. For more fish-species variety, Polly Lake edges ahead with 8 documented species.