Little Turtle Lake vs Movil Lake
Water quality, depth, fish species, and recreation comparison.
Movil Lake has a higher water quality grade (A, Excellent) than Little Turtle Lake (C, Fair). Both are in Beltrami County, Minnesota.
Little Turtle Lake and Movil Lake are both in Minnesota — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. Movil Lake (A) is materially cleaner than Little Turtle Lake (C). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.
For a recreational visitor, the wider grade gap is decisive — Movil Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?
Little Turtle Lake
Murky, only visible to about 6.5 ft.
Movil Lake
Good clarity, visible to about 14 ft.
Side-by-Side Metrics
| Metric | Little Turtle Lake | Movil Lake |
|---|---|---|
| Overall Grade | C (Fair) | A (Excellent) |
| Water Clarity | 6.5 ft | 14 ft |
| Phosphorus | 23.5 µg/L | 12 µg/L |
| Chlorophyll-a (Algae) | 12 µg/L | 5.3 µg/L |
| Maximum Depth | 25 ft | 50 ft |
| Surface Area | 469 acres | 855 acres |
| Public Access | No | Yes |
| Fish Species | 15 | 20 |
| Trophic State | eutrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Movil Lake wins on overall water quality with a Grade A versus Little Turtle Lake's Grade C. Water clarity: 14 ft vs 6.5 ft. For fishing diversity, Movil Lake also leads with 20 species.
Source: EPA National Aquatic Resource Surveys, 2026.