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LakeQuality

Caldron Falls Reservoir vs High Falls Reservoir at

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

High Falls Reservoir at has a higher water quality grade (C, Fair) than Caldron Falls Reservoir (D, Poor). Both are in Marinette County, Wisconsin.

Both Caldron Falls Reservoir and High Falls Reservoir at 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 close: Caldron Falls Reservoir (D) and High Falls Reservoir at (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.

D

Caldron Falls Reservoir

Marinette County, Wisconsin

Murky, only visible to about 5.2 ft.

C

High Falls Reservoir at

Marinette County, Wisconsin

Moderate clarity, visible to about 9.5 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.

MetricCaldron Falls ReservoirHigh Falls Reservoir at
Overall GradeD (Poor)C (Fair)
Water Clarity5.2 ft9.5 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth40 ft54 ft
Surface Area1.1K acres1.5K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophicmesotrophic

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

Verdict

High Falls Reservoir at wins on overall water quality with a Grade C versus Caldron Falls Reservoir's Grade D. Water clarity: 9.5 ft vs 5.2 ft. For fishing diversity, High Falls Reservoir at also leads with 0 species.