Andrusia Lake vs Cass Lake Allens Bay
Water quality, depth, fish species, and recreation comparison.
Andrusia Lake and Cass Lake Allens Bay both received the same overall water quality grade of A (Excellent). Both are in Beltrami County, Minnesota.
Both Andrusia Lake and Cass Lake Allens Bay 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. These two are within a letter of each other on the rubric — Andrusia Lake (A) versus Cass Lake Allens Bay (A). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.
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.
Cass Lake Allens Bay
Crystal clear, you can see 16.6 ft down.
Side-by-Side Metrics
| Metric | Andrusia Lake | Cass Lake Allens Bay |
|---|---|---|
| Overall Grade | A (Excellent) | A (Excellent) |
| Water Clarity | 15.5 ft | 16.6 ft |
| Phosphorus | 14 µg/L | No data |
| Chlorophyll-a (Algae) | No data | 4.7 µg/L |
| Maximum Depth | 60 ft | 120 ft |
| Surface Area | 1.6K acres | 16.0K acres |
| Public Access | Yes | Yes |
| 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
Both lakes earn the same Grade A. The tiebreakers come down to clarity (Andrusia Lake: 15.5 ft, Cass Lake Allens Bay: 16.6 ft) and what you want from the lake. Andrusia Lake matches its peer on species count.