2021 Map of Mount Baldy

About this map

The Angeles National Forest and San Bernardino National Forest meet here along the county line between Los Angeles and San Bernardino counties. This mountain landscape is defined by its dramatic elevation changes, where residential foothills in Upland, Claremont, and Rancho Cucamonga give way to the steep canyons of the San Gabriel Mountains. The map illustrates a network of fire roads and recreational trails, such as the Cobal Cyn Fire Trl and Stephens Ranch Rd, that navigate the terrain surrounding Potato Mtn and Sunset Peak. The transition from suburban development to wildland is stark, with the San Antonio Cr Channel providing a critical drainage link from the high country near Mount Baldy settlement down into the populated San Gabriel Valley. Notable local history landmarks include family-named features like Miller Ranch Rd and old gathering spots like Stoddard Flat.