The mission of the Crook County Museum & Art Gallery is to collect, protect, and preserve information and objects pertaining to the natural and social history of Crook County, Wyoming. In order to accomplish this mission the Museum and Art Gallery will do the following:

Research, exhibit, and display items in a manner that promotes the education and enjoyment of the general populace and encourage, promote, correlate and cooperate in all activities necessary for the achievement of these objectives.

The Art Gallery will display art from Wyoming, with a particular emphasis on Crook County artists and collectors, which will promote an understanding and appreciation of art.