Big Wolf Lake vs Grace Lake
Water quality, depth, fish species, and recreation comparison.
Grace Lake has a higher water quality grade (A, Excellent) than Big Wolf Lake (B, Good). Both are in Minnesota.
Big Wolf Lake and Grace Lake are both in Minnesota — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. These two are within a letter of each other on the rubric — Big Wolf Lake (B) versus Grace Lake (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.
Big Wolf Lake
Good clarity, visible to about 11.5 ft.
Grace Lake
Crystal clear, you can see 15.5 ft down.
Side-by-Side Metrics
| Metric | Big Wolf Lake | Grace Lake |
|---|---|---|
| Overall Grade | B (Good) | A (Excellent) |
| Water Clarity | 11.5 ft | 15.5 ft |
| Phosphorus | No data | 21.5 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 57 ft | 42 ft |
| Surface Area | 1.1K acres | 859.82 acres |
| Public Access | Yes | Yes |
| Fish Species | 1 | 1 |
| Trophic State | mesotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Grace Lake wins on overall water quality with a Grade A versus Big Wolf Lake's Grade B. Water clarity: 15.5 ft vs 11.5 ft. For fishing diversity, Grace Lake also leads with 1 species.