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LakeQuality

Little Gabbro Lake vs Wilson Lake

Water quality, depth, fish species, and recreation comparison.

Wilson Lake has a higher water quality grade (A, Excellent) than Little Gabbro Lake (D, Poor). Both are in Lake County, Minnesota.

Both Little Gabbro Lake and Wilson 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 meaningfully apart: Wilson Lake grades a A while Little Gabbro Lake grades a D. That two-letter spread reflects real underlying differences — different watershed inputs, different depth profiles, or different monitoring rigor.

For a recreational visitor, the wider grade gap is decisive — Wilson Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

D

Little Gabbro Lake

Lake County, Minnesota

Murky, only visible to about 6.5 ft.

A

Wilson Lake

Lake County, Minnesota

Good clarity, visible to about 10.3 ft.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricLittle Gabbro LakeWilson Lake
Overall GradeD (Poor)A (Excellent)
Water Clarity6.5 ft10.3 ft
PhosphorusNo data13 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area154 acres650 acres
Public AccessUnknownUnknown
Fish Species11
Trophic Stateeutrophicmesotrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Wilson Lake wins on overall water quality with a Grade A versus Little Gabbro Lake's Grade D. Water clarity: 10.3 ft vs 6.5 ft. For fishing diversity, Wilson Lake also leads with 1 species.