High Plains Ag Lab The High Plains Ag Lab (HPAL) is a satellite unit of the Panhandle Research and Extension Center in Scottsbluff. HPAL Panhandle Research Feedlot The Panhandle Research Feedlot's mission is precise, timely research data with real value to the cattle feeding industry. Feedlot Panhandle Experimental Range The Panhandle Experimental Range has been used for research for more than 100 years. In 1918, the federal government gave the university an 800-acre piece of rangeland in southern Sioux County to conduct regionally relevant research. Range Our Research Beef CROPS