Is Fourth Crow Wing Lake Safe for Swimming?
Fourth Crow Wing Lake in Hubbard County, Minnesota has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 8 ft visibility. Phosphorus: 19.5 µg/L. Chlorophyll-a (algae): 2.2 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 8 ft |
| Phosphorus | 19.5 μg/L |
| Chlorophyll-a (Algae) | 2.2 μg/L |
| Maximum Depth | 10 ft |
| Location | Hubbard County, Minnesota |
How does Fourth Crow Wing Lake compare?
With an overall water quality grade of A, Fourth Crow Wing Lake matches or beats the Minnesota state average of Grade C. It ranks #42 of 68 lakes in Hubbard County by water quality score.
Water clarity (Secchi depth) sits at 8 feet. That puts the lake in good clarity range, with limited algae interference. Algae levels (chlorophyll-a) measure 2.2 µg/L — low and well within safe swimming guidelines.