Occurrence and Development Potential

Geologic Studies Conducted by the BLM on Federal Lands 

• MONTANA
  • Big Coulee - ELK Basin
  • Fort Peck-Weldon
  • Poplar-Glendive
  • Big Snowy Mountains Quadrangle
  • Bowdoin/Cat Creek (a portion)
  • Cedar Creek-Powder River
  • Dillon Field Office - all
    • Borah Peck Quadrangle
    • Dillon Quadrangle
    • East Dillon
    • Ennis Quadrangle
    • Hebgen Lake Quadrangle
    • Leadore Quadrangle
    • Salmon Quadrangle
  • Headwaters Resource Area
  • Miles City-Tongue River
  • Missoula County Ts 14 & 15N-R 15W
  • Sweetgrass and Stillwater Counties Ts 3 & 45 Rs 14&15E
  • Three Forks-Big Timber
• NORTH DAKOTA
  • Bakken
  • Cedar River-National Grassland, Sioux and Grant Counties
• SOUTH DAKOTA
  • East of the Missouri River in the northeastern part of South Dakota
  • Bennett, Mellette, Shannon, Todd and, Washabaugh Counties
  • Bon Homme, Yankton, Clay, and Union Counties
  • Brule, Aurora, and Davision Counties
  • Butte County
  • Campbell County
  • Charles Mix County
  • Corson County
  • Custer County
  • Dewey County
  • Douglas, Hutchinson, Turner, and Lincoln Counties
  • Fall River County
  • Gregory County
  • Haakon County
  • Hanson, McCook, Minnehaha, and Moody Counties
  • Harding County
  • Hughes County
  • Jackson County
  • Jones County
  • Lawrence County
  • Lyman County
  • McPherson and Edmunds Counties
  • Meade County
  • Pennington County
  • Perkins County
  • Stanley County
  • Tripp County
  • Walworth County
  • Ziebach County