1990 Map of Harquahala Mountain

About this map

Harquahala Mountains rise as the dominant landform in this desert region, crossing the boundary between La Paz and Maricopa counties. The map reveals a landscape defined by 20th-century mineral exploration, with numerous prospects, adits, and mine shafts scattered across the slopes. Notable workings include the Monterey Mine Prospect and the Sunshine Mine, while an Open Pit Mine near Arrastre Gulch indicates more intensive extraction efforts. Higher elevations are marked by the presence of a Radio Tower atop Harquahala Mountain and the strategic gap of Sunset Pass. Despite the arid environment, several water sources like Cottonwood Spring and Seep Spring are documented, which likely served as vital points for early mining camps and prospectors navigating the canyons and washes.