1990 Map of Mustang Spring

About this map

The high desert landscape of Humboldt County is defined here by the sharp rise of the Bilk Creek Mountains and the solitary peak of Black Mountain. This 1990 provisional survey documents a region where survival is dictated by scattered water sources such as Mustang Spring, De Long Spring, and the seasonally vital Quinn River. Human activity is primarily industrial and ranch-based, evidenced by numerous prospects and borrow pits that dot the slopes, alongside a network of specialized infrastructure including the Radar Well and the Leuder Well windmill. The transition from the rugged elevations of Sand Canyon down to the Kings River Valley illustrates the complex topography that miners and ranchers navigated in the late 20th century.