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LakeQuality

Lost Valley Lake vs Port Hudson Lake

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

Lost Valley Lake and Port Hudson Lake both received the same overall water quality grade of C (Fair). Both are in Wisconsin.

Lost Valley Lake and Port Hudson Lake are both in Missouri — 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. The grades are close: Lost Valley Lake (C) and Port Hudson Lake (C) 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.

C

Lost Valley Lake

Gasconade County, Wisconsin

Murky, only visible to about 3.9 ft.

C

Port Hudson Lake

Franklin County, Wisconsin

Murky, only visible to about 6.1 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.

MetricLost Valley LakePort Hudson Lake
Overall GradeC (Fair)C (Fair)
Water Clarity3.9 ft6.1 ft
Phosphorus22.7 µg/L20.8 µg/L
Chlorophyll-a (Algae)7.2 µg/L7.5 µg/L
Maximum Depth--
Surface Area39 acres55 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophicmesotrophic

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

Verdict

Both lakes earn the same Grade C. The tiebreakers come down to clarity (Lost Valley Lake: 3.9 ft, Port Hudson Lake: 6.1 ft) and what you want from the lake. Lost Valley Lake matches its peer on species count.