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LakeQuality

Moose Lake vs Tiger Cat Flowage Lake

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

Tiger Cat Flowage Lake has a higher water quality grade (A, Excellent) than Moose Lake (C, Fair). Both are in Sawyer County, Wisconsin.

Both Moose Lake and Tiger Cat Flowage 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. The grades are meaningfully apart: Tiger Cat Flowage Lake grades a A while Moose Lake grades a C. 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 — Tiger Cat Flowage 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?

C

Moose Lake

Sawyer County, Wisconsin

Very murky, less than 2 ft of visibility.

A

Tiger Cat Flowage Lake

Sawyer County, Wisconsin

Good clarity, visible to about 10.8 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.

MetricMoose LakeTiger Cat Flowage Lake
Overall GradeC (Fair)A (Excellent)
Water Clarity2 ft10.8 ft
Phosphorus28.9 µg/L13.5 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area1.7K acres819 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophicmesotrophic

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

Verdict

Tiger Cat Flowage Lake wins on overall water quality with a Grade A versus Moose Lake's Grade C. Water clarity: 10.8 ft vs 2 ft. For fishing diversity, Tiger Cat Flowage Lake also leads with 0 species.