Is Devil Track Lake Safe for Swimming?
Devil Track Lake in Cook County, Minnesota has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 7 ft visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 5.3 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 7 ft |
| Phosphorus | 12 μg/L |
| Chlorophyll-a (Algae) | 5.3 μg/L |
| Maximum Depth | 50 ft |
| Location | Cook County, Minnesota |
How does Devil Track Lake compare?
With an overall water quality grade of A, Devil Track Lake matches or beats the Minnesota state average of Grade C. It ranks #10 of 44 lakes in Cook County by water quality score.
Water clarity (Secchi depth) sits at 7 feet. That puts the lake in good clarity range, with limited algae interference. Algae levels (chlorophyll-a) measure 5.3 µg/L — low and well within safe swimming guidelines.
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