2012 Map of Glendora

About this map

Glendora anchors the southern edge of this landscape, where the suburban grid of the San Gabriel Valley meets the steep foothills of the San Gabriel Mountains. This area is characterized by a complex network of deep canyons and seasonal washes, such as Big Dalton Wash and San Dimas Wash, which feed into major impoundments like San Gabriel Reservoir and Morris Reservoir. The map reveals the intricate management of this terrain for both utility and recreation, featuring numerous forest service outposts like the Mount Baldy District Ranger Office and Dalton Forest Service Facility. Higher elevations are marked by a transition to wilderness access points, including the Eldoradoville Campground and several named flats like Heaton Flat and Doe Flat. Winding roads such as Glendora Mountain Rd provide the primary transit through these corridors, connecting the valley to high-altitude sites like Johnstone Peak.