Clearwater Lake vs Long Island Lake
Water quality, depth, fish species, and recreation comparison.
Clearwater Lake has a higher water quality grade (A, Excellent) than Long Island Lake (C, Fair). Both are in Cook County, Minnesota.
A
Clearwater Lake
Cook County, Minnesota
Crystal clear, you can see 30 ft down.
C
Long Island Lake
Cook County, Minnesota
Moderate clarity, visible to about 8 ft.
Side-by-Side Metrics
| Metric | Clearwater Lake | Long Island Lake |
|---|---|---|
| Overall Grade | A (Excellent) | C (Fair) |
| Water Clarity | 30 ft | 8 ft |
| Phosphorus | 4 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 65 ft | 85 ft |
| Surface Area | 461.73 acres | 883.53 acres |
| Public Access | No | No |
| Fish Species | 0 | 6 |
| Trophic State | oligotrophic | mesotrophic |
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 Long Island Lake's Grade C. Water clarity: 30 ft vs 8 ft. For more fish-species variety, Long Island Lake edges ahead with 6 documented species.