Andrusia Lake vs Marquette Lake
Water quality, depth, fish species, and recreation comparison.
Andrusia Lake has a higher water quality grade (A, Excellent) than Marquette Lake (B, Good). Both are in Beltrami County, Minnesota.
Both Andrusia Lake and Marquette Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. The grades are close: Andrusia Lake (A) and Marquette Lake (B) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.
With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.
Andrusia Lake
Crystal clear, you can see 15.5 ft down.
Marquette Lake
Moderate clarity, visible to about 8.5 ft.
Side-by-Side Metrics
| Metric | Andrusia Lake | Marquette Lake |
|---|---|---|
| Overall Grade | A (Excellent) | B (Good) |
| Water Clarity | 15.5 ft | 8.5 ft |
| Phosphorus | 14 µg/L | 24 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 60 ft | 51 ft |
| Surface Area | 1.6K acres | 527.56 acres |
| Public Access | Yes | No |
| Fish Species | 1 | 1 |
| Trophic State | oligotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Andrusia Lake wins on overall water quality with a Grade A versus Marquette Lake's Grade B. Water clarity: 15.5 ft vs 8.5 ft. For fishing diversity, Andrusia Lake also leads with 1 species.