LK Crook is a reservoir located in Lamar County, Texas. The lake was constructed in 1966 on Black Bayou, a tributary of the Red River, for flood control, water supply, and recreational purposes. The lake has a capacity of 2,300 acre-feet and a surface area of 247 acres. The hydrology of the lake is primarily supplied by runoff from its small watershed and some inflow from Black Bayou. The lake does not have any significant surface flow sources or snowpack providers. The lake is mainly used for recreational activities such as fishing, boating, and camping. There are no agricultural uses of the lake. The lake is managed by the City of Paris and is open to the public.