White Picacho is a 4,285-foot summit in Arizona’s Hieroglyphic Mountains, east of Wickenburg in rugged country where central Arizona uplands give way to the Sonoran Desert. Beyond its role as a local desert peak, it is closely tied to the historic White Picacho pegmatite district in southern Yavapai and northern Maricopa counties. Mines southwest of White Picacho and nearby Red Picacho became known for an unusually broad mix of minerals, including niobium, tantalum, tungsten, beryllium, lithium, gold, and rare-earth elements. That connection gives the mountain significance as part of one of Arizona’s distinctive pegmatite-producing regions.