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Minnewaska Lake reads lower on nutrients and algae than Reno Lake. Both are in Pope County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Minnewaska Lake and Reno Lake are both in Minnesota — 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. Minnewaska Lake reads materially cleaner than Reno Lake on nutrients and algae. 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 gap in the readings is decisive: Minnewaska Lake has the lower nutrient and algae numbers. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

Minnewaska Lake

Pope County, Minnesota

Good clarity, visible to about 11 ft.

Reno Lake

Pope County, Minnesota

Moderate clarity, visible to about 7.5 ft.

Side-by-Side Metrics

MetricMinnewaska LakeReno Lake
Water Clarity11 ft Better7.5 ft
Phosphorus24 µg/L Better33.5 µg/L
Chlorophyll-a (Algae)6 µg/L Better9.6 µg/L
Maximum Depth32 ft Better23 ft
Surface Area8,050 acres3,809 acres
Public AccessYesYes
Fish Species21 Better18
Trophic Statemesotrophiceutrophic

A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.

Verdict

Minnewaska Lake reads lower on nutrients and algae than Reno Lake. Water clarity: 11 ft vs 7.5 ft. For fishing diversity, Minnewaska Lake also leads with 21 species.

Source: EPA National Aquatic Resource Surveys, 2026.