Rock Creek State Park is a state park in Jasper County, Iowa, United States, located near the city of Kellogg. The 1697 acre park was dedicated in 1952 and includes numerous boat launches and docks, picnic grounds, camping grounds, and trails for horseback riding and hiking. In the winter, the 602 acre lake may freeze over, and the park is a popular spot for cross-country skiing and snowmobiling. Grinnell is located 7 mi to the east. The park's proximity to the town as well as a connecting bike path make the park a popular destination for students at Grinnell College. Fishing is a popular thing at Rock Creek, Fish species are Black and White Crappie, Largemouth Bass, White Bass, Channel Catfish, Black Bullhead, Bluegill, Green Sunfish, Freshwater Drum, and Walleye. Golden Shiners also have a small population here, two large Golden Shiners were caught while fishing for panfish.