1
ALong Lake
Clearwater County, Minnesota · 7.1 mi from Minerva Lake
- +Higher grade (B → A)
- ++12.7 ft water clarity
- +Lower phosphorus (7 vs 26 µg/L)
Cleaner Lakes Than Minerva Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Minerva Lake carries a Grade B (Good) water quality score. Within 30 miles, 4 lakes hold a higher grade. Long Lake (Clearwater County, Grade A, 7.1 mi away) is the closest meaningful upgrade.
2
ABig Lasalle Lake
Clearwater County, Minnesota · 9 mi from Minerva Lake
- +Higher grade (B → A)
- ++3 ft water clarity
- +Lower phosphorus (9 vs 26 µg/L)
3
BLasalle Lake
Hubbard County, Minnesota · 7.4 mi from Minerva Lake
- +Higher overall water quality score
- +Lower phosphorus (8 vs 26 µg/L)
4
BWalker Brook Lake
Clearwater County, Minnesota · 7.8 mi from Minerva Lake
- +Higher overall water quality score
- ++3.7 ft water clarity
- +Lower phosphorus (20 vs 26 µg/L)
How this list is built
Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.