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LakeQuality

East Sylvia Lake vs Upper Maple Lake

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

East Sylvia Lake and Upper Maple Lake both received the same overall water quality grade of A (Excellent). Both are in Wright County, Minnesota.

Both East Sylvia 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: East Sylvia Lake (A) 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.

A

East Sylvia Lake

Wright County, Minnesota

Crystal clear, you can see 21.7 ft down.

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.

MetricEast Sylvia LakeUpper Maple Lake
Overall GradeA (Excellent)A (Excellent)
Water Clarity21.7 ft18 ft
Phosphorus8 µg/L16 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth78 ft76 ft
Surface Area669.42 acres632.6 acres
Public AccessNoYes
Fish Species11
Trophic Stateoligotrophicoligotrophic

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

Verdict

Both lakes earn the same Grade A. The tiebreakers come down to clarity (East Sylvia Lake: 21.7 ft, Upper Maple Lake: 18 ft) and what you want from the lake. East Sylvia Lake matches its peer on species count.