Big Sandy Lake vs Rat Lake
Water quality, depth, fish species, and recreation comparison.
Big Sandy Lake has a higher water quality grade (C, Fair) than Rat Lake (D, Poor). Both are in Aitkin County, Minnesota.
C
Big Sandy Lake
Aitkin County, Minnesota
Murky, only visible to about 4.5 ft.
D
Rat Lake
Aitkin County, Minnesota
Murky, only visible to about 5 ft.
Side-by-Side Metrics
| Metric | Big Sandy Lake | Rat Lake |
|---|---|---|
| Overall Grade | C (Fair) | D (Poor) |
| Water Clarity | 4.5 ft | 5 ft |
| Phosphorus | 29.5 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 84 ft | 21 ft |
| Surface Area | 6.1K acres | 431.3 acres |
| Public Access | Yes | No |
| Fish Species | 22 | 13 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Big Sandy Lake wins on overall water quality with a Grade C versus Rat Lake's Grade D. Water clarity: 4.5 ft vs 5 ft. For fishing diversity, Big Sandy Lake also leads with 22 species.