• Arial view of the Anaconda Smelter Site
    Anaconda
  • On January 17, 2015, the Poplar Pipeline discharged at least 30,000 gallons of Bakken crude oil into the Yellowstone River just upstream of Glendive, MT.
    Bridger Yellowstone River 2015 Spill
  • Butte Area One
    Butte Area One
  • Clark Fork River
    Clark Fork River Operable Unit
  • East Helena
    East Helena
  • Mill Pond
    Libby Asbestos
  • Milltown
  • Silver Bow Creek
  • Smurfit Stone Site
    Smurfit-Stone/Frenchtown Mill Site
  • Upper Blackfoot River
    Upper Blackfoot Mining Complex – Mike Horse
  • Upper Clark Fork River
    Upper Clark Fork River Basin
  • Yellowstone River Below Laurel in 2011. Photo: Larry Mayer
    Yellowstone River Oil Spill (July 2011)