Cleanest Lakes in Granite County, Montana
Johnson Lake in Granite County leads the rankings with a water quality grade of NR. Below are the top 10 cleanest monitored lakes in Granite County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Johnson Lake | Granite | NR | - | - | - |
| 2 | Carpp Lake | Granite | NR | - | - | - |
| 3 | Medicine Lake | Granite | NR | - | - | - |
| 4 | Echo Lake | Granite | NR | - | - | - |
| 5 | Racetrack Lake | Granite | NR | - | - | - |
| 6 | Fred Burr Lake | Granite | NR | - | - | - |
| 7 | Fisher Lake | Granite | NR | - | - | - |
| 8 | Big Pozega Lake | Granite | NR | - | - | - |
| 9 | Thornton Lake | Granite | NR | - | - | - |
| 10 | Lower Willow Creek Reservoir | Granite | NR | - | - | - |
More Answers for Granite County, Montana
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