The San Gabriel back country retains much of the natural beauty, if not the primitive wilderness of yesteryear. Thanks largely to the foresight and capable supervision of the U.S. Forest Service and hundreds of volunteers. Picnic areas and campgrounds have been constructed with minimum displacement of the natural setting.
Those desiring to see this primitive wilderness in a single day are invited to participate in the Angeles Crest 100 Mile Endurance Run.
Created in 1986 the Angeles Crest 100 is a point-to-point 100 mile endurance race starting in Wrightwood (California) and ending at the Loma Alta Park in Altadena.