Mountain Lake vs Watap Lake
Water quality, depth, fish species, and recreation comparison.
Mountain Lake has a higher water quality grade (A, Excellent) than Watap Lake (C, Fair). Both are in Minnesota.
Mountain Lake and Watap 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: Mountain Lake grades a A while Watap Lake grades a C. 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 — Mountain 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?
Mountain Lake
Crystal clear, you can see 19 ft down.
Watap Lake
Moderate clarity, visible to about 9 ft.
Side-by-Side Metrics
| Metric | Mountain Lake | Watap Lake |
|---|---|---|
| Overall Grade | A (Excellent) | C (Fair) |
| Water Clarity | 19 ft | 9 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 130 ft | 210 ft |
| Surface Area | 1.3K acres | 2.0K acres |
| Public Access | Yes | No |
| Fish Species | 1 | 1 |
| Trophic State | oligotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Mountain Lake wins on overall water quality with a Grade A versus Watap Lake's Grade C. Water clarity: 19 ft vs 9 ft. For fishing diversity, Mountain Lake also leads with 1 species.