Crook County, Wyoming: overview, geography, history and communities

Geography and notable features

The county occupies a transitional zone between the Great Plains and the Black Hills. It borders Montana to the north and South Dakota to the east. Landscapes range from broad grasslands and ranch country to the wooded slopes and outcrops associated with the Black Hills. One of the county’s best‑known landmarks, Devils Tower, rises dramatically from the plains and draws visitors for climbing, hiking and scenic viewing.

History and origins

Crook County was organized on December 8, 1875, during the era of the Wyoming Territory. It was named for Brigadier General George Crook, a U.S. Army officer active in the region during the Indian Wars. Before Euro‑American settlement, the area was part of the traditional territories and travel routes of Plains Indigenous peoples.

Economy, communities and recreation

The local economy centers on ranching, small‑scale agriculture, and services for rural residents, supplemented by tourism and outdoor recreation. Besides the county seat of Sundance, smaller towns and unincorporated communities include Hulett and Moorcroft among others. Recreational opportunities such as hunting, fishing, rock climbing and scenic drives attract visitors seasonally.

Further information

• County government and services: Crook County official
• State context and resources: Wyoming state information
• Regional geography and tourism: Black Hills and local attractions
• Population and census details: 2010 census data
• Devils Tower National Monument: monument overview