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LakeQuality

Louise Lake vs Mary Lake Central Basin Southeast; Waucedah Township

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

Louise Lake and Mary Lake Central Basin Southeast; Waucedah Township both received the same overall water quality grade of B (Good). Both are in Dickinson County, Wisconsin.

Louise Lake and Mary Lake Central Basin Southeast; Waucedah Township are both in Michigan — 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 — Louise Lake (B) versus Mary Lake Central Basin Southeast; Waucedah Township (B). 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.

B

Louise Lake

Dickinson County, Wisconsin

Good clarity, visible to about 12.5 ft.

Good clarity, visible to about 13.8 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.

MetricLouise LakeMary Lake Central Basin Southeast; Waucedah Township
Overall GradeB (Good)B (Good)
Water Clarity12.5 ft13.8 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area230 acres230 acres
Public AccessUnknownUnknown
Fish Species10
Trophic Statemesotrophicoligotrophic

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

Verdict

Both lakes earn the same Grade B. The tiebreakers come down to clarity (Louise Lake: 12.5 ft, Mary Lake Central Basin Southeast; Waucedah Township: 13.8 ft) and what you want from the lake. Louise Lake supports more documented fish species.