Casey’s Paha is a 175-acre preserve that highlights a half-mile portion of a 2.5-mile-long elongated hill known as a “paha.” It is located within Hickory Hills Recreation Area in northeastern Tama County, 13 miles south of Waterloo. This 665-acre area was purchased in 1974 by the Black Hawk County Conservation Board. The western third was dedicated as a geological state preserve in 1989 and named after the Caseys, an Irish family that originally settled in the area.