The Crook County Historical Society expanded in 2008 again. The historical society renovated a 5,000 square foot building for exhibits, a research library, and storage. The new space was named the Crook County History Center and was opened in 2012.
The Crook County Historical Society also operates an annex called the Rancher's Memorial, which was opened in the 1980s. The museum was built to house old ranch equipment and a 1907 Studebaker Phaeton. By continuously expanding its space and dedicating itself to the history of the area, the Crook County Historical Society made the history of Crook County more relevant and widely known.