Cleanest Lakes in Big Horn County, Montana
Bighorn Lake in Big Horn County leads the rankings with a water quality grade of C. Below are the top 2 cleanest monitored lakes in Big Horn County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Bighorn Lake | Big Horn | C | - | 37 µg/L | 17.1 µg/L |
| 2 | Nla Lake | Big Horn | D | 4.9 ft | 82000 µg/L | 14.3 µg/L |