Birch Lake vs Ottertrack Lake
Water quality, depth, fish species, and recreation comparison.
Birch Lake and Ottertrack Lake both received the same overall water quality grade of A (Excellent). Both are in Unknown County, Minnesota.
A
Birch Lake
Unknown County, Minnesota
Crystal clear, you can see 15 ft down.
A
Ottertrack Lake
Unknown County, Minnesota
Crystal clear, you can see 20.7 ft down.
Side-by-Side Metrics
| Metric | Birch Lake | Ottertrack Lake |
|---|---|---|
| Overall Grade | A (Excellent) | A (Excellent) |
| Water Clarity | 15 ft | 20.7 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 34 ft | 116 ft |
| Surface Area | 836.35 acres | 1.1K acres |
| Public Access | No | No |
| Fish Species | 10 | 9 |
| Trophic State | oligotrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Both lakes earn the same Grade A. The tiebreakers come down to clarity (Birch Lake: 15 ft, Ottertrack Lake: 20.7 ft) and what you want from the lake. Birch Lake supports more documented fish species.