Crystal Lake vs Loon Lake
Water quality, depth, fish species, and recreation comparison.
Crystal Lake and Loon Lake both received the same overall water quality grade of F (Very Poor). Both are in Blue Earth County, Minnesota.
F
Crystal Lake
Blue Earth County, Minnesota
Very murky, less than 1.5 ft of visibility.
F
Loon Lake
Blue Earth County, Minnesota
Very murky, less than 2 ft of visibility.
Side-by-Side Metrics
| Metric | Crystal Lake | Loon Lake |
|---|---|---|
| Overall Grade | F (Very Poor) | F (Very Poor) |
| Water Clarity | 1.5 ft | 2 ft |
| Phosphorus | 172 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 8 ft | 7 ft |
| Surface Area | 379.38 acres | 808.62 acres |
| Public Access | Yes | Yes |
| Fish Species | 12 | 13 |
| Trophic State | hypereutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Both lakes earn the same Grade F. The tiebreakers come down to clarity (Crystal Lake: 1.5 ft, Loon Lake: 2 ft) and what you want from the lake. Crystal Lake has fewer fish species than Loon Lake.