Cleanest Lakes in Ravalli County, Montana
Nla Lake in Ravalli County leads the rankings with a water quality grade of A and 18 ft of clarity. Below are the top 1 cleanest monitored lakes in Ravalli County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Ravalli | A | 18 ft | 6.9 µg/L | 0.9 µg/L |