Sand Hill Lake vs Turtle Lake
Water quality, depth, fish species, and recreation comparison.
Sand Hill Lake has a higher water quality grade (B, Good) than Turtle Lake (C, Fair). Both are in Polk County, Minnesota.
Both Sand Hill Lake and Turtle Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. The grades are close: Sand Hill Lake (B) and Turtle Lake (C) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.
With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.
Sand Hill Lake
Moderate clarity, visible to about 6.9 ft.
Turtle Lake
Murky, only visible to about 3.6 ft.
Side-by-Side Metrics
| Metric | Sand Hill Lake | Turtle Lake |
|---|---|---|
| Overall Grade | B (Good) | C (Fair) |
| Water Clarity | 6.9 ft | 3.6 ft |
| Phosphorus | 26 µg/L | 56.5 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 17 ft | 12 ft |
| Surface Area | 479.19 acres | 525.13 acres |
| Public Access | Yes | Yes |
| Fish Species | 1 | 0 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Sand Hill Lake wins on overall water quality with a Grade B versus Turtle Lake's Grade C. Water clarity: 6.9 ft vs 3.6 ft. For fishing diversity, Sand Hill Lake also leads with 1 species.