Bright Lake vs Little Tuttle Lake
Water quality, depth, fish species, and recreation comparison.
Bright Lake and Little Tuttle Lake both received the same overall water quality grade of F (Very Poor). Both are in Martin County, Minnesota.
Bright Lake and Little Tuttle 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. The grades are close: Bright Lake (F) and Little Tuttle Lake (F) 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.
Bright Lake
Very murky, less than 1 ft of visibility.
Little Tuttle Lake
Very murky, less than 1 ft of visibility.
Side-by-Side Metrics
| Metric | Bright Lake | Little Tuttle Lake |
|---|---|---|
| Overall Grade | F (Very Poor) | F (Very Poor) |
| Water Clarity | 1 ft | 1 ft |
| Phosphorus | 138 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 7 ft | 7 ft |
| Surface Area | 638.55 acres | 638.55 acres |
| Public Access | Yes | Yes |
| Fish Species | 20 | 20 |
| Trophic State | hypereutrophic | hypereutrophic |
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 (Bright Lake: 1 ft, Little Tuttle Lake: 1 ft) and what you want from the lake. Bright Lake matches its peer on species count.