20 Acre Industrial-Potential Site Harquahala Plains, AZ Infrastructure-Proposed, Scale-Optimized Located just 3 miles off the Salome Highway exit, this 20-acre tract in the Harquahala Plains is not raw land it’s a high-leverage industrial asset engineered for speed, scale, and strategic operations. With fiber-optic running along the street frontage and flat, development-potential terrain, this parcel eliminates guesswork and accelerates execution.