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LakeQuality

Big Lake vs Big Lake

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

Big Lake has a higher water quality grade (A, Excellent) than Big Lake (C, Fair). Both are in Vilas County, Wisconsin.

Both Big Lake and Big Lake sit in Wisconsin. 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. Big Lake (A) is materially cleaner than Big Lake (C). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.

For a recreational visitor, the wider grade gap is decisive — Big 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?

A

Big Lake

Vilas County, Wisconsin

No clarity data.

C

Big Lake

Vilas County, Wisconsin

Moderate clarity, visible to about 7 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.

MetricBig LakeBig Lake
Overall GradeA (Excellent)C (Fair)
Water ClarityNo data7 ft
Phosphorus17.4 µg/LNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth30 ft30 ft
Surface Area780 acres780 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophicmesotrophic

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

Verdict

Big Lake wins on overall water quality with a Grade A versus Big Lake's Grade C. For fishing diversity, Big Lake also leads with 0 species.