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LakeQuality

Frances Lake vs Scotch Lake

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

Frances Lake has a higher water quality grade (C, Fair) than Scotch Lake (D, Poor). Both are in Le Sueur County, Minnesota.

Both Frances Lake and Scotch 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. These two are within a letter of each other on the rubric — Frances Lake (C) versus Scotch Lake (D). 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.

C

Frances Lake

Le Sueur County, Minnesota

Murky, only visible to about 6 ft.

D

Scotch Lake

Le Sueur County, Minnesota

Murky, only visible to about 4.1 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.

MetricFrances LakeScotch Lake
Overall GradeC (Fair)D (Poor)
Water Clarity6 ft4.1 ft
Phosphorus25 µg/L569 µg/L
Chlorophyll-a (Algae)No data9.7 µg/L
Maximum Depth60 ft11 ft
Surface Area927.01 acres598.21 acres
Public AccessYesYes
Fish Species11
Trophic Stateeutrophiceutrophic

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

Verdict

Frances Lake wins on overall water quality with a Grade C versus Scotch Lake's Grade D. Water clarity: 6 ft vs 4.1 ft. For fishing diversity, Frances Lake also leads with 1 species.