Entrance Road-Devils Tower National Monument

Crook County, Wyoming, located in the northeastern part of the state, has a rich history dating back thousands of years. Native American tribes such as the Cheyenne, Sioux, and Arapaho inhabited the area long before European explorers arrived. The region's first European contact is believed to be made by French-Canadian fur trappers in the early 1800s.

In the mid-1800s, Crook County's history became intertwined with the expansion of the western frontier. Following the discovery of gold in nearby South Dakota, the region experienced an influx of settlers and prospectors seeking their fortunes. Fort Phil Kearny, established in 1866 to protect settlers from Native American attacks, played a crucial role in the history of the county. The Battle of the Hundred-in-the-Hand, also known as the Fetterman Massacre, occurred near Fort Phil Kearny and was a significant event in the county's history.

The establishment of the Union Pacific Railroad in 1868 brought further growth and development to Crook County. Towns such as Sundance, Moorcroft, and Hulett sprung up along the railroad tracks, serving as important trade and transportation hubs. The county was officially organized in 1875 and named after General George Crook, a prominent figure in the Indian Wars.

Throughout the 20th century, Crook County's economy has primarily relied on agriculture, particularly ranching and farming. The county has also been a popular destination for outdoor enthusiasts, with vast open spaces, rolling hills, and the majestic Black Hills nearby attracting tourists from all over. Today, Crook County continues to preserve its history and natural beauty, offering a glimpse into the frontier era and the rich tapestry of Wyoming's past.