Tags: Mountain Range.
The Santa Margarita Mountains are a mountain range part of the Santa Ana Mountains in coastal San Diego County California. They are bounded on the northwest by San Mateo Creek on the northeast by Teneja Canyon Creek on the east by De Luz Creek and on the south by Las Pulgas Canyon. On the southwest they descend into the coastal foothills in the Marine Corps Base Camp Pendleton. Its highest summit is Margarita Peak at an elevation of 3136 feet.