5.19.21b

Casper, Wyoming (Main Office)​

(307)237-9301

5.19.21b

Donkey Creek, Wyoming (Field Office)​

(307)696-8261

5.19.21

Clareton, Wyoming (Field Office)​

(307) 746-2586

5.19.21

Red Wing Creek, North Dakota (Field Office)​

(701) 586-3122

Additional Field Areas

  • SW Wyoming and Colorado
  • Breed Creek/Melstone – Central Montana 
  • Sidney – Eastern Montana
  • Utopia – Northern Montana
  • Southern Powder River Basin