 Ivanpah was located at 35° 32' 42.15" -115° 32' 7.19" (WGS84), on the northeast side of Clark Mountain.While searching for copper, the Piute Company of California and Nevada in 1869 found rich deposits of silver ore on the lower slopes of what was soon named Clark Mountain, west of the Nevada line.The company laid out a townsite at Willow Spring, near a wash on the southeast slope, about nine miles east of the discoveries.