San Gabriel Mountains

San Gabriel Mountains
Summits in the eastern San Gabriel Mountains, Angeles National Forest, San Bernardino County, California. The main peaks are: Telegraph Peak 8,985 feet (2,739 m) (left), Cucamonga Peak, 8,859 feet (2,700 m) (center), and Ontario Peak 8,693 feet (2,650 m) (center right), as seen from Baldy Bowl on Mount Baldy.
Highest point
Peak	Mount San Antonio
Elevation	10,069 ft (3,069 m)
Coordinates	34°17′20″N 117°38′48″W / 34.2889°N 117.6467°W / 34.2889; -117.6467
Dimensions
Length	68.4 mi (110.1 km)
Width	22.5 mi (36.2 km)
Area	970 sq mi (2,500 km2)
Geography
Country	United States
State	California
Counties	Los Angeles San Bernardino

The San Gabriel Mountains (Spanish: Sierra de San Gabriel) comprise a mountain range located in northern Los Angeles County and western San Bernardino County, California, United States.^[1] The mountain range is part of the Transverse Ranges and lies between the Los Angeles Basin and the Mojave Desert, with Interstate 5 to the west and Interstate 15 to the east. The range lies in, and is surrounded by, the Angeles and San Bernardino National Forests, with the San Andreas Fault as its northern border.

The highest peak in the range is Mount San Antonio, commonly referred to as Mt. Baldy. Mount Wilson is another notable peak, known for the Mount Wilson Observatory and the antenna farm that houses many of the transmitters for local media. The observatory may be visited by the public. On October 10, 2014, Barack Obama designated the area the San Gabriel Mountains National Monument.^[2] The Trust for Public Land has protected more than 3,800 acres (1,500 ha) of land in the San Gabriel Mountains, its foothills, and the Angeles National Forest.^[3]