Birch Island Lake vs Upper Clam Lake
Water quality, depth, fish species, and recreation comparison.
Birch Island Lake has a higher water quality grade (A, Excellent) than Upper Clam Lake (D, Poor). Both are in Burnett County, Wisconsin.
A
Birch Island Lake
Burnett County, Wisconsin
Crystal clear, you can see 26.2 ft down.
D
Upper Clam Lake
Burnett County, Wisconsin
Murky, only visible to about 6.6 ft.
Side-by-Side Metrics
| Metric | Birch Island Lake | Upper Clam Lake |
|---|---|---|
| Overall Grade | A (Excellent) | D (Poor) |
| Water Clarity | 26.2 ft | 6.6 ft |
| Phosphorus | 13.7 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | 11 ft |
| Surface Area | 768 acres | 1.3K acres |
| Public Access | Yes | Yes |
| Fish Species | 3 | 7 |
| Trophic State | oligotrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Birch Island Lake wins on overall water quality with a Grade A versus Upper Clam Lake's Grade D. Water clarity: 26.2 ft vs 6.6 ft. For more fish-species variety, Upper Clam Lake edges ahead with 7 documented species.