LK Cisco is a reservoir located in Cisco, Texas. It was created in the 1930s by the City of Cisco to provide drinking water and recreational opportunities to the town. The hydrology of the reservoir is primarily fed by surface water and snowpack from nearby mountains, with the primary surface flow provider being the Leon River. The lake serves as a primary source of water for irrigation and livestock in the surrounding agricultural areas. Recreational activities include fishing, boating, and swimming. The lake is also home to several species of fish, including largemouth bass, catfish, and crappie. Overall, LK Cisco has been an important resource for the community and surrounding areas for many years.