Cleanest Lakes in Valley County, Montana
Corral Junction Number Two Detention Reservoir in Valley County leads the rankings with a water quality grade of NR. Below are the top 21 cleanest monitored lakes in Valley County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Corral Junction Number Two Detention Reservoir | Valley | NR | - | - | - |
| 2 | Forrest Reservoir | Valley | NR | - | - | - |
| 3 | Collins Reservoir | Valley | NR | - | - | - |
| 4 | Gutshot Detention Reservoir | Valley | NR | - | - | - |
| 5 | Grub Detention Reservoir | Valley | NR | - | - | - |
| 6 | South Beaver Reservoir | Valley | NR | - | - | - |
| 7 | Itcaina Reservoir | Valley | NR | - | - | - |
| 8 | Arrambide Reservoir | Valley | NR | - | - | - |
| 9 | Jim Reservoir | Valley | NR | - | - | - |
| 10 | Triple Crossing Reservoir | Valley | NR | - | - | - |
| 11 | Baalke Slough | Valley | NR | - | - | - |
| 12 | Lake Grable | Valley | NR | - | - | - |
| 13 | Cornwell Reservoir | Valley | NR | - | - | - |
| 14 | Mahan and Hoyt Reservoir | Valley | NR | - | - | - |
| 15 | Todd Lakes | Valley | NR | - | - | - |
| 16 | Frazer Lake | Valley | NR | - | - | - |
| 17 | Cactus Flat Detention Reservoir | Valley | NR | - | - | - |
| 18 | Willow Creek Flat Reservoir | Valley | NR | - | - | - |
| 19 | Willow Flat Reservoir | Valley | NR | - | - | - |
| 20 | Target Detention Reservoir | Valley | NR | - | - | - |
| 21 | Lori Detention Reservoir | Valley | NR | - | - | - |
More Answers for Valley County, Montana
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