sentences:  The county's topography also features many "strip cut" lakes, lakes left behind following above-ground coal mining.Lakes at two of the county's chief recreation areas, the Du Quoin State Fairgrounds and Pyramid State Recreation Area, were formed this way.In recent years, average temperatures in the county seat of Pinckneyville have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1912 and a record high of was recorded in July 1934.