What’s now Crook County, Wyo., was crossed by Custer in 1874 on his expedition to the Black Hills, the spark that led to the final struggles of the Indian wars on the northern plains. Ranchers a few years later brought in cattle and later, sheep, and the county was organized in 1885, with its county seat at Sundance. Harry Longabaugh, a.k.a. the Sundance Kid, spent 18 months in jail there. Coal deposits were exploited in the 1890s and shipped by rail to gold smelters in nearby Lead and Deadwood, So. Dak. Devils Tower National Monument, established in 1906 as the first national monument in the United States and still a sacred place for the Sioux, is located in Crook County. Agriculture, mining and timbering still play significant roles in its economy.