Bald Eagle Lake vs Turtle Lake
Water quality, depth, fish species, and recreation comparison.
Turtle Lake has a higher water quality grade (A, Excellent) than Bald Eagle Lake (D, Poor). Both are in Ramsey County, Minnesota.
Bald Eagle Lake and Turtle 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 meaningfully apart: Turtle Lake grades a A while Bald Eagle Lake grades a D. That two-letter spread reflects real underlying differences — different watershed inputs, different depth profiles, or different monitoring rigor.
For a recreational visitor, the wider grade gap is decisive — Turtle 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?
Bald Eagle Lake
Murky, only visible to about 5.6 ft.
Turtle Lake
Moderate clarity, visible to about 7.5 ft.
Side-by-Side Metrics
| Metric | Bald Eagle Lake | Turtle Lake |
|---|---|---|
| Overall Grade | D (Poor) | A (Excellent) Better |
| Water Clarity | 5.6 ft | 7.5 ft Better |
| Phosphorus | 34 µg/L | 22 µg/L Better |
| Chlorophyll-a (Algae) | 21.7 µg/L | 5.2 µg/L Better |
| Maximum Depth | 36 ft Better | 28 ft |
| Surface Area | 1,049 acres | 450 acres |
| Public Access | Yes | Yes |
| Fish Species | 13 | 15 Better |
| Trophic State | eutrophic | mesotrophic |
A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.
Swap a lake
Compare Bald Eagle Lake or Turtle Lake against a different lake.
Verdict
Turtle Lake wins on overall water quality with a Grade A versus Bald Eagle Lake's Grade D. Water clarity: 7.5 ft vs 5.6 ft. For fishing diversity, Turtle Lake also leads with 15 species.
Source: EPA National Aquatic Resource Surveys, 2026.