The Angeles National Forest of the U.S. Forest Service is located in the San Gabriel Mountains and Sierra Pelona Mountains, primarily within Los Angeles County in southern California. The ANF manages a majority of the San Gabriel Mountains National Monument.
The national forest was established in 1908, incorporating the first San Bernardino National Forest and parts of the former Santa Barbara and San Gabriel National Forests. Angeles National Forest headquarters are located in Arcadia, California.
Wikipedia https://en.wikipedia.org/wiki/Angeles_National_Forest
Official website http://www.fs.usda.gov/angeles
Address 91042, United States
Coordinates 34°20'4.701" N -118°9'32.683" E