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LakeQuality

Swan Lake Max Depth vs Yellow Smoke Lake

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

Yellow Smoke Lake has a higher water quality grade (D, Poor) than Swan Lake Max Depth (F, Very Poor). Both are in Wisconsin.

Both Swan Lake Max Depth and Yellow Smoke Lake sit in Iowa. 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 close: Swan Lake Max Depth (F) and Yellow Smoke Lake (D) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.

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.

F

Swan Lake Max Depth

Carroll County, Wisconsin

Very murky, less than 1.4 ft of visibility.

D

Yellow Smoke Lake

Crawford County, Wisconsin

Very murky, less than 3 ft of visibility.

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.

MetricSwan Lake Max DepthYellow Smoke Lake
Overall GradeF (Very Poor)D (Poor)
Water Clarity1.4 ft3 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)74 µg/L21.6 µg/L
Maximum Depth--
Surface Area130 acres38.4 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statehypereutrophiceutrophic

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

Verdict

Yellow Smoke Lake wins on overall water quality with a Grade D versus Swan Lake Max Depth's Grade F. Water clarity: 3 ft vs 1.4 ft. For fishing diversity, Yellow Smoke Lake also leads with 0 species.