Armstrong Lake vs Bear Head Lake
Water quality, depth, fish species, and recreation comparison.
Armstrong Lake has a higher water quality grade (A, Excellent) than Bear Head Lake (A, Excellent). Both are in St. Louis County, Minnesota.
A
Armstrong Lake
St. Louis County, Minnesota
Crystal clear, you can see 16.2 ft down.
A
Bear Head Lake
St. Louis County, Minnesota
Good clarity, visible to about 11 ft.
Side-by-Side Metrics
| Metric | Armstrong Lake | Bear Head Lake |
|---|---|---|
| Overall Grade | A (Excellent) | A (Excellent) |
| Water Clarity | 16.2 ft | 11 ft |
| Phosphorus | No data | 19.5 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 34 ft | 46 ft |
| Surface Area | 382.34 acres | 661.98 acres |
| Public Access | Yes | Yes |
| Fish Species | 10 | 9 |
| Trophic State | oligotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Armstrong Lake wins on overall water quality with a Grade A versus Bear Head Lake's Grade A. Water clarity: 16.2 ft vs 11 ft. For fishing diversity, Armstrong Lake also leads with 10 species.