1982 Map of Hidden Valley East

About this map

Cady Mountains dominate the central relief of this 1982 provisional survey, showcasing a complex network of arid drainage systems and desert terrain in San Bernardino County. The map captures the meeting point of high-elevation landforms and broad alluvial fans, particularly where Baxter Wash and other unnamed tributaries flow out from the mountain slopes. The northern reach of Hidden Valley is clearly delineated, providing a topographic record of the basin's floor before the widespread use of more modern digital mapping techniques. This edition, produced from manuscript drawings based on 1970s aerial photography, emphasizes natural landform morphology rather than human development, making it an essential reference for understanding the physical geography of the Mojave region at the dawn of the 1980s.