1985 Map of Ivanpah Lake

About this map

Clark Mtn Range dominates the northwestern corner of this map, looking down upon the broad expanse of Ivanpah Valley where California and Nevada meet. This 1980s landscape is defined by the stark transition from the high relief of the mountains to the flat, expansive dry bed of Ivanpah Lake. Evidence of localized resource extraction and water access is scattered across the arid terrain, including the Umberci Mine and a Borrow Pit near the Nevada border. Transport across this desert environment is anchored by Yates Well Road, which leads to the critical water source at Yates Well. The map captures the precise Boundary (1873) and the State Line, illustrating the historical and administrative partitioning of this high-desert region during the late twentieth century.