1986 Map of Cooper Peak

About this map

The Roberts Mountains dominate the southern portion of this mid-1980s landscape, rising sharply from the ranchlands of Denay Valley in Eureka County. This high-elevation terrain is characterized by an extensive network of drainage systems, including Pete Hanson Creek, Birch Creek, and Kelley Creek, which flow northward toward the valley floor. The map captures a moment in the region's mining and ranching history, noting the solitary Willow Creek Ranch and numerous unnamed prospects, mines, and a mineshaft scattered throughout the higher reaches near Cooper Peak and Western Peak. The transition from the alluvial fans of the valley to the steep slopes of Gabel Canyon highlights the area's geological complexity. Notable livestock infrastructure, such as several stock tanks and a corral, indicates the continued importance of range grazing in this remote high-desert environment.