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LakeQuality

Alpine Lake vs Aspen Lake Along Southern Arm

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

Alpine Lake has a higher water quality grade (A, Excellent) than Aspen Lake Along Southern Arm (C, Fair). Both are in Warren County, Wisconsin.

Alpine Lake and Aspen Lake Along Southern Arm 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. Alpine Lake (A) is materially cleaner than Aspen Lake Along Southern Arm (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 — Alpine 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

Alpine Lake

Warren County, Wisconsin

Good clarity, visible to about 12.6 ft.

C

Aspen Lake Along Southern Arm

Warren County, Wisconsin

Murky, only visible to about 3.8 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.

MetricAlpine LakeAspen Lake Along Southern Arm
Overall GradeA (Excellent)C (Fair)
Water Clarity12.6 ft3.8 ft
Phosphorus7 µg/L20.8 µg/L
Chlorophyll-a (Algae)1.5 µg/L5.3 µg/L
Maximum Depth--
Surface Area325 acres146 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateoligotrophiceutrophic

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

Verdict

Alpine Lake wins on overall water quality with a Grade A versus Aspen Lake Along Southern Arm's Grade C. Water clarity: 12.6 ft vs 3.8 ft. For fishing diversity, Alpine Lake also leads with 0 species.