2015 Map of Chuckwalla Spring

About this map

Chuckwalla Spring sits at the heart of this desert landscape, where the shifting elevations of the Chuckwalla Mountains meet the border between Riverside and Imperial counties. The map documents a critical corridor of desert travel, most notably the historic Bradshaw Trl, which runs west-to-east across the lower sections of the survey. This route was famously used as a stagecoach line in the mid-19th century, connecting the Gold Rush fields to the Colorado River. North of this trail, the terrain climbs toward Graham Pass and Augustine Pass Rd, marking the natural bottlenecks through the mountains. Water sources like Mesquite Spring and the drainage of the Arroyo Seco define the geography, highlighting the essential points of relief in an otherwise arid environment where the township and range lines of the Public Land Survey System overlay a complex topography of ridges and dry washes.