1959 Map of Chilao Flat

About this map

Monte Cristo Mine and several other gold and prospect sites punctuate the high-elevation terrain of the Angeles National Forest in this 1959 survey. The map records a landscape of isolated mountain holdings, such as Loomis Ranch and Newcomb Ranch, alongside mid-century recreation infrastructure including Chilao Campground and Horse Flats Campground. The Angeles Crest Highway winds through the topography, connecting remote service hubs like the State Highway Maintenance Sta and Red Box Station. Natural water systems, including the Upper Big Tujunga Canyon and its many feeder gulches like Wildcat Gulch, dominate the drainage patterns. A small Military Reservation at Barley Flats and a secluded Cem near the Loomis homestead provide specific points of interest for local historians and genealogists researching the high San Gabriels.