Crook County lies in the extreme northeastern corner of Wyoming and has long been one of the state’s most sparsely populated counties. Its county seat is Sundance. According to the 2010 census, the county had 7,083 residents, making it the third‑least populous county in Wyoming. Large areas of open range, rolling prairie and forested foothills define its low‑density settlement pattern.

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