Big Hill Lake, is located 8 miles (13 km) west of the city of Parsons, Kansas along highway 160 in the United States. The reservoir holds 1,240 acres (5.0 km²) of water, with 367 acres (1.49 km²) available for public use. Fishing, picnicking, boating, and a sandy beach swimming area are popular activities. The lake is operated by the U.S.