How Clean Is Big Trout Lake?
Big Trout Lake is among the cleanest lakes in Minnesota. It received a water quality grade of A (Excellent) based on EPA monitoring data. Water clarity (Secchi depth): 16.4 ft. Phosphorus: 9 µg/L. Trophic State Index: 36.
Cleanliness Snapshot
| Metric | Big Trout Lake | Minnesota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 16.4 ft | — |
| Phosphorus | 9 µg/L | <30 = clean |
| Trophic State Index | 36 | <50 = clean |
How does Big Trout Lake compare?
Big Trout Lake's grade of A matches or beats the Minnesota state average of C. It ranks #23 of 120 lakes in Crow Wing County by water quality score. Multi-year monitoring data shows water quality is stable based on 5 years of records.