Big Swan Lake vs Little Birch Lake
Water quality, depth, fish species, and recreation comparison.
Little Birch Lake has a higher water quality grade (A, Excellent) than Big Swan Lake (C, Fair). Both are in Todd County, Minnesota.
C
Big Swan Lake
Todd County, Minnesota
Moderate clarity, visible to about 8.9 ft.
A
Little Birch Lake
Todd County, Minnesota
Good clarity, visible to about 14 ft.
Side-by-Side Metrics
| Metric | Big Swan Lake | Little Birch Lake |
|---|---|---|
| Overall Grade | C (Fair) | A (Excellent) |
| Water Clarity | 8.9 ft | 14 ft |
| Phosphorus | No data | 18 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 45 ft | 89 ft |
| Surface Area | 946.56 acres | 839.44 acres |
| Public Access | Yes | Yes |
| Fish Species | 16 | 20 |
| Trophic State | mesotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Little Birch Lake wins on overall water quality with a Grade A versus Big Swan Lake's Grade C. Water clarity: 14 ft vs 8.9 ft. For fishing diversity, Little Birch Lake also leads with 20 species.