Long Lake vs Marquette Lake
Water quality, depth, fish species, and recreation comparison.
Long Lake has a higher water quality grade (A, Excellent) than Marquette Lake (B, Good). Both are in Beltrami County, Minnesota.
A
Long Lake
Beltrami County, Minnesota
Crystal clear, you can see 20 ft down.
B
Marquette Lake
Beltrami County, Minnesota
Moderate clarity, visible to about 8.5 ft.
Side-by-Side Metrics
| Metric | Long Lake | Marquette Lake |
|---|---|---|
| Overall Grade | A (Excellent) | B (Good) |
| Water Clarity | 20 ft | 8.5 ft |
| Phosphorus | 7 µg/L | 24 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 87 ft | 51 ft |
| Surface Area | 411.95 acres | 527.56 acres |
| Public Access | No | No |
| Fish Species | 11 | 18 |
| Trophic State | oligotrophic | 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 A versus Marquette Lake's Grade B. Water clarity: 20 ft vs 8.5 ft. For more fish-species variety, Marquette Lake edges ahead with 18 documented species.