Elm Island Lake vs Long Lake
Water quality, depth, fish species, and recreation comparison.
Long Lake has a higher water quality grade (B, Good) than Elm Island Lake (D, Poor). Both are in Aitkin County, Minnesota.
D
Elm Island Lake
Aitkin County, Minnesota
Murky, only visible to about 4 ft.
B
Long Lake
Aitkin County, Minnesota
Good clarity, visible to about 10.8 ft.
Side-by-Side Metrics
| Metric | Elm Island Lake | Long Lake |
|---|---|---|
| Overall Grade | D (Poor) | B (Good) |
| Water Clarity | 4 ft | 10.8 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 25 ft | 116 ft |
| Surface Area | 519.52 acres | 434.72 acres |
| Public Access | Yes | Yes |
| Fish Species | 15 | 16 |
| Trophic State | eutrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Long Lake wins on overall water quality with a Grade B versus Elm Island Lake's Grade D. Water clarity: 10.8 ft vs 4 ft. For fishing diversity, Long Lake also leads with 16 species.