
Black Hills Clyde Ice Field (KSPF/SPF) in the US is a civil airfield primarily supporting VFR traffic at an elevation of 1198 meters. It features five runways, including a main asphalt runway 1950 meters long and several grass runways ranging from 616 to 1211 meters. Pilots can use frequencies like CTAF/UNICOM 122.7 and Ellsworth Approach/Departure 119.5 for communication, making it a versatile spot for general aviation in the region.