2018 Map of Twelvemile Spring

About this map

Twelvemile Spring provides a critical water source in this arid corner of the Mojave Desert, marking a vital point in the landscape for those navigating the eastern Inyo County desert. The topography is defined by the broad, low-lying Chicago Valley, which is framed by the steep rising elevations of the Resting Spring Range to the west and the Nopah Range to the east. This 2018 survey illustrates a starkly remote area where human infrastructure is limited to the single passage of Chicago Valley Rd, which bisects the valley floor. The map’s focus on vertical relief and natural boundaries highlights the geological isolation of the region, emphasizing how the placement of a single spring or a primitive road dictates movement through the basin-and-range terrain.