Andrew Lake vs Mary Lake
Water quality, depth, fish species, and recreation comparison.
Andrew Lake has a higher water quality grade (A, Excellent) than Mary Lake (B, Good). Both are in Douglas County, Minnesota.
A
Andrew Lake
Douglas County, Minnesota
Good clarity, visible to about 13.9 ft.
B
Mary Lake
Douglas County, Minnesota
Moderate clarity, visible to about 9.8 ft.
Side-by-Side Metrics
| Metric | Andrew Lake | Mary Lake |
|---|---|---|
| Overall Grade | A (Excellent) | B (Good) |
| Water Clarity | 13.9 ft | 9.8 ft |
| Phosphorus | 16.5 µg/L | 19 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 83 ft | 40 ft |
| Surface Area | 922.77 acres | 2.5K acres |
| Public Access | Yes | Yes |
| Fish Species | 18 | 17 |
| Trophic State | mesotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Andrew Lake wins on overall water quality with a Grade A versus Mary Lake's Grade B. Water clarity: 13.9 ft vs 9.8 ft. For fishing diversity, Andrew Lake also leads with 18 species.