Alvin Lake vs Carlos Lake
Water quality, depth, fish species, and recreation comparison.
Carlos Lake has a higher water quality grade (A, Excellent) than Alvin Lake (B, Good). Both are in Douglas County, Minnesota.
B
Alvin Lake
Douglas County, Minnesota
Good clarity, visible to about 10.5 ft.
A
Carlos Lake
Douglas County, Minnesota
Crystal clear, you can see 17.2 ft down.
Side-by-Side Metrics
| Metric | Alvin Lake | Carlos Lake |
|---|---|---|
| Overall Grade | B (Good) | A (Excellent) |
| Water Clarity | 10.5 ft | 17.2 ft |
| Phosphorus | No data | 13 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 163 ft | 163 ft |
| Surface Area | 2.6K acres | 2.6K acres |
| Public Access | Yes | Yes |
| Fish Species | 21 | 21 |
| Trophic State | mesotrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Carlos Lake wins on overall water quality with a Grade A versus Alvin Lake's Grade B. Water clarity: 17.2 ft vs 10.5 ft. For fishing diversity, Carlos Lake also leads with 21 species.