Skip to main content
LakeQuality

Maple Lake vs Reno Lake

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

Maple Lake has a higher water quality grade (A, Excellent) than Reno Lake (C, Fair). Both are in Minnesota.

Both Maple Lake and Reno Lake sit in Minnesota. 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. Maple Lake (A) is materially cleaner than Reno Lake (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 — Maple 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

Maple Lake

Douglas County, Minnesota

Good clarity, visible to about 13.7 ft.

C

Reno Lake

Pope County, Minnesota

Moderate clarity, visible to about 6.9 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.

MetricMaple LakeReno Lake
Overall GradeA (Excellent)C (Fair)
Water Clarity13.7 ft6.9 ft
Phosphorus15 µg/L33 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth78 ft23 ft
Surface Area830.87 acres3.8K acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophiceutrophic

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

Verdict

Maple Lake wins on overall water quality with a Grade A versus Reno Lake's Grade C. Water clarity: 13.7 ft vs 6.9 ft. For fishing diversity, Maple Lake also leads with 1 species.