Los Angeles Basin in the context of "Los Angeles"

The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the incorporated cities of Burbank, Calabasas, Glendale, Hidden Hills and San Fernando, plus several unincorporated areas. The valley is the home of Warner Bros. Studios, Walt Disney Studios, and the Universal Studios Hollywood theme park.

The San Gabriel Valley (Spanish: Valle de San Gabriel), sometimes referred to by its initials as SGV, is one of the principal valleys of Southern California, with the city of Los Angeles directly bordering it to the west and occupying the vast majority of the southeastern part of Los Angeles County. Surrounding landforms and other features include:

• the San Gabriel Mountains to the north;
• the San Rafael Hills to the west, with the Los Angeles Basin beyond;
• the Crescenta Valley to the northwest;
• the Puente Hills to the south, with the coastal plain of Orange County beyond;
• the Chino Hills and San Jose Hills to the east, with the Pomona Valley and Inland Empire beyond; and
• the city limits of Los Angeles bordering its western edge.

The San Gabriel Valley derives its name from the San Gabriel River that flows southward through the center of the valley, which itself was named for the Spanish Mission San Gabriel Arcángel originally built in the Whittier Narrows in 1771.

The Santa Ana Mountains are a short peninsular mountain range along the coast of Southern California in the United States. They extend for approximately 61 miles (98 km) southeast of the Los Angeles Basin largely along the border between Orange and Riverside counties.

The San Joaquin Hills are a low mountain range of the Peninsular Ranges System, located in coastal Orange County, California.

They extend in a northwest–southeast direction, starting in the northwest in Newport Beach at the southern edge of the Los Angeles Basin, and extending southeast to San Juan Capistrano.

The San Gabriel Mountains (Spanish: Sierra de San Gabriel) are a mountain range located in Los Angeles and San Bernardino counties, California, United States. 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, President Barack Obama designated the area the San Gabriel Mountains National Monument. 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. The mountains were once known as the Sierra Madre, lending the name to the city of Sierra Madre; however, since 1965, the name "Sierra Madre" has referred to a different mountain range to the west in Santa Barbara County.

The San Rafael Hills are a mountain range in Los Angeles County, California. They are one of the lower Transverse Ranges, and are parallel to and below the San Gabriel Mountains, adjacent to the San Gabriel Valley overlooking the Los Angeles Basin.