Ann Lake vs Knife Lake
Water quality, depth, fish species, and recreation comparison.
Ann Lake has a higher water quality grade (D, Poor) than Knife Lake (F, Very Poor). Both are in Kanabec County, Minnesota.
D
Ann Lake
Kanabec County, Minnesota
Very murky, less than 2 ft of visibility.
F
Knife Lake
Kanabec County, Minnesota
Very murky, less than 2.3 ft of visibility.
Side-by-Side Metrics
| Metric | Ann Lake | Knife Lake |
|---|---|---|
| Overall Grade | D (Poor) | F (Very Poor) |
| Water Clarity | 2 ft | 2.3 ft |
| Phosphorus | 78.5 µg/L | 161.5 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 17 ft | 15 ft |
| Surface Area | 653.49 acres | 1.3K acres |
| Public Access | Yes | Yes |
| Fish Species | 13 | 19 |
| Trophic State | eutrophic | hypereutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Ann Lake wins on overall water quality with a Grade D versus Knife Lake's Grade F. Water clarity: 2 ft vs 2.3 ft. For more fish-species variety, Knife Lake edges ahead with 19 documented species.