2015 Map of Mount Boardman

About this map

San Antonio Valley serves as a central point in this high-altitude landscape where the boundaries of four counties—Santa Clara, Stanislaus, Alameda, and San Joaquin—converge. The terrain is defined by a dense network of canyons and peaks, anchored by the prominence of Mount Boardman and Mt Mocho to the north and Red Mtn to the south. Historically significant routes like Mines Rd and San Antonio Valley Rd follow the natural topography, providing access to this isolated interior. Water sources are scattered throughout the drainages, including Passionate Spring and the headwaters of Del Puerto Cr. The map reveals a place where land management and ranching tradition persist, evidenced by the named valleys like Blackbird Valley and the remote Hideout Canyon, tucked away from the more developed coastal corridors of the region.