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LakeQuality

Clearwater Lake vs Upper Maple Lake

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

Upper Maple Lake has a higher water quality grade (A, Excellent) than Clearwater Lake (B, Good). Both are in Wright County, Minnesota.

Both Clearwater Lake and Upper Maple 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. The grades are close: Clearwater Lake (B) and Upper Maple Lake (A) 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.

B

Clearwater Lake

Wright County, Minnesota

Good clarity, visible to about 10.2 ft.

A

Upper Maple Lake

Wright County, Minnesota

Crystal clear, you can see 18 ft down.

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.

MetricClearwater LakeUpper Maple Lake
Overall GradeB (Good)A (Excellent)
Water Clarity10.2 ft18 ft
Phosphorus21 µg/L16 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth73 ft76 ft
Surface Area3.2K acres632.6 acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophicoligotrophic

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

Verdict

Upper Maple Lake wins on overall water quality with a Grade A versus Clearwater Lake's Grade B. Water clarity: 18 ft vs 10.2 ft. For fishing diversity, Upper Maple Lake also leads with 1 species.