The Gudmundsen Sandhills Laboratory is located in the heart of the Nebraska Sandhills in Grant, Hooker and Cherry counties. In 1978, Elmer "Pete" and Abbie Gudmundsen gave the former Rafter C Ranch to the University of Nebraska Foundation. The University of Nebraska-Lincoln leased the Gudmundsen Sandhills Laboratory from the Foundation in 1981. To convert the Rafter C from an improved commercial ranch to a research orientated facility, many improvements were made. During the first six years, approximately 17 miles of fence, 24 watering locations, sorting pens, scales, a calving barn and a ranch home were added.