Cleanest Lakes in Rosebud County, Montana
Castle Rock Lake in Rosebud County leads the rankings with a water quality grade of NR. Below are the top 15 cleanest monitored lakes in Rosebud County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Castle Rock Lake | Rosebud | NR | - | - | - |
| 2 | Stellar Lake | Rosebud | NR | - | - | - |
| 3 | Boies Reservoir | Rosebud | NR | - | - | - |
| 4 | Barley Reservoir | Rosebud | NR | - | - | - |
| 5 | Barley Reservoirs | Rosebud | NR | - | - | - |
| 6 | Brown Coulee Reservoir | Rosebud | NR | - | - | - |
| 7 | Kerns Reservoir | Rosebud | NR | - | - | - |
| 8 | Blacktail Reservoir | Rosebud | NR | - | - | - |
| 9 | Blacktail Reservoir | Rosebud | NR | - | - | - |
| 10 | Zempel Lake | Rosebud | NR | - | - | - |
| 11 | Zempel Lake | Rosebud | NR | - | - | - |
| 12 | Donleys Reservoir | Rosebud | NR | - | - | - |
| 13 | Thebes Lake | Rosebud | NR | - | - | - |
| 14 | Black Sea Reservoir | Rosebud | NR | - | - | - |
| 15 | Black Sea Reservoir | Rosebud | NR | - | - | - |
More Answers for Rosebud County, Montana
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