Is Eagles Nest Lake Safe for Swimming?
Eagles Nest Lake in St. Louis County, Minnesota has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 15.5 ft visibility. Phosphorus: 7 µg/L. Chlorophyll-a (algae): 1.1 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 15.5 ft |
| Phosphorus | 7 μg/L |
| Chlorophyll-a (Algae) | 1.1 μg/L |
| Maximum Depth | 49 ft |
| Location | St. Louis County, Minnesota |
How does Eagles Nest Lake compare?
With an overall water quality grade of B, Eagles Nest Lake matches or beats the Minnesota state average of Grade C. It ranks #30 of 68 lakes in St. Louis County by water quality score.
Water clarity (Secchi depth) sits at 15.5 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae. Algae levels (chlorophyll-a) measure 1.1 µg/L — low and well within safe swimming guidelines.