1955 Map of Mustang Peak

About this map

Mustang Peak and the surrounding high country of the Diablo Range dominate this mid-century survey, where the boundary between Stanislaus and Santa Clara counties winds through a landscape defined by deep canyons and isolated ranching outposts. Gill Ranch stands as a primary point of human activity in the northern section, supported by a network of unimproved routes including Red Creek Road and several Jeep Trails. The drainage patterns here are complex, with Orestimba Creek and Garzas Creek carving through the terrain alongside numerous named basins like Mustang Canyon and Buckeye Canyon. Small-scale water management is evident through features like Bullhead Reservoir and Oak Springs Reservoir, essential infrastructure for livestock in this arid environment. A notable Landing Strip near Paradise Flat highlights the reliance on aerial access for these remote interior highlands during the 1950s.