Grace Lake vs Little Wolf Lake
Water quality, depth, fish species, and recreation comparison.
Grace Lake and Little Wolf Lake both received the same overall water quality grade of C (Fair). Both are in Minnesota.
Grace Lake and Little Wolf 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 — Grace Lake (C) versus Little Wolf Lake (C). 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.
Grace Lake
Crystal clear, you can see 15 ft down.
Little Wolf Lake
Moderate clarity, visible to about 7 ft.
Side-by-Side Metrics
| Metric | Grace Lake | Little Wolf Lake |
|---|---|---|
| Overall Grade | C (Fair) | C (Fair) |
| Water Clarity | 15 ft | 7 ft |
| Phosphorus | 21.5 µg/L | 26.5 µg/L |
| Chlorophyll-a (Algae) | 9.3 µg/L | 12.7 µg/L |
| Maximum Depth | 42 ft | 24 ft |
| Surface Area | 860 acres | 525 acres |
| Public Access | Yes | Yes |
| Fish Species | 13 | 13 |
| Trophic State | mesotrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Both lakes earn the same Grade C. The tiebreakers come down to clarity (Grace Lake: 15 ft, Little Wolf Lake: 7 ft) and what you want from the lake. Grace Lake matches its peer on species count.
Source: EPA National Aquatic Resource Surveys, 2026.