Big Sandy Lake vs Round Lake
Water quality, depth, fish species, and recreation comparison.
Round Lake has a higher water quality grade (B, Good) than Big Sandy Lake (C, Fair). Both are in Aitkin County, Minnesota.
C
Big Sandy Lake
Aitkin County, Minnesota
Murky, only visible to about 4.5 ft.
B
Round Lake
Aitkin County, Minnesota
Good clarity, visible to about 14.5 ft.
Side-by-Side Metrics
| Metric | Big Sandy Lake | Round Lake |
|---|---|---|
| Overall Grade | C (Fair) | B (Good) |
| Water Clarity | 4.5 ft | 14.5 ft |
| Phosphorus | 29.5 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 84 ft | 27 ft |
| Surface Area | 6.1K acres | 553.5 acres |
| Public Access | Yes | Yes |
| Fish Species | 22 | 11 |
| Trophic State | eutrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Round Lake wins on overall water quality with a Grade B versus Big Sandy Lake's Grade C. Water clarity: 14.5 ft vs 4.5 ft. For more fish-species variety, Big Sandy Lake edges ahead with 22 documented species.