San Gabriel Mountains National Monument Office is located at 110 N. Wabash Ave., Glendora, CA 91741 (626) 335-1251, Ext. 221 CRS (800) 735-2922 (Voice) CRS (800) 735-2929 (TDD/TTY) FAX (626) 914-3790
San Gabriel Mountains National Monument is primarily first-come, first-served. Use the availability view to gauge how busy it is before you go.
See the map for San Gabriel Mountains National Monument's exact location and directions.
Pick your dates on the availability calendar, then reserve through the official booking link. You can also set an alert and we'll notify you if a sold-out date opens up.