Ada Lake vs Big Portage (E Bay Lake
Water quality, depth, fish species, and recreation comparison.
Ada Lake has a higher water quality grade (A, Excellent) than Big Portage (E Bay Lake (B, Good). Both are in Cass County, Minnesota.
A
Ada Lake
Cass County, Minnesota
Good clarity, visible to about 14 ft.
B
Big Portage (E Bay Lake
Cass County, Minnesota
Moderate clarity, visible to about 7.9 ft.
Side-by-Side Metrics
| Metric | Ada Lake | Big Portage (E Bay Lake |
|---|---|---|
| Overall Grade | A (Excellent) | B (Good) |
| Water Clarity | 14 ft | 7.9 ft |
| Phosphorus | 10 µg/L | 20 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 60 ft | 23 ft |
| Surface Area | 963.31 acres | 902.34 acres |
| Public Access | Yes | Yes |
| Fish Species | 16 | 13 |
| Trophic State | oligotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Ada Lake wins on overall water quality with a Grade A versus Big Portage (E Bay Lake's Grade B. Water clarity: 14 ft vs 7.9 ft. For fishing diversity, Ada Lake also leads with 16 species.