Ranchita, California

The San Felipe Hills are a low mountain range in eastern San Diego County, southern California.

The Grapevine Hills are a low mountain range within Anza-Borrego Desert State Park in the Colorado Desert, in eastern San Diego County, southern California.

Teofulio Summit, formerly Warner Pass, a pass that lies at an elevation of 3681 feet in the San Felipe Hills of the Peninsular Ranges of San Diego County, California. This pass was named for Teofulio Helm (1874-1967), a prominent member of the Cupeno Band of Mission Indians, who homesteaded in the area.Teofulio Summit is the lowest crossing of the Peninsular Ranges between San Gorgonio Pass, fifty miles north in Riverside County, and San Matias Pass, two hundred miles south in the Baja California Peninsula. Teofulio Summit, is a watershed divide between the eastern watershed that flows into the Salton Sink and the west-flowing streams of the Pacific Ocean watershed.

Rancho Valle de San Felipe was a 9,972-acre (40.36 km2) Mexican land grant in present-day San Diego County, California given in 1846 by Governor Pío Pico to Felipe Castillo. The grant was located in the San Felipe Valley in the Laguna Mountains east of present-day Julian.

Hot Springs Mountain is a peak located in the Peninsular Ranges in California. The mountain rises to an elevation of 6,533 feet (1,991 m) and is the highest point in San Diego County. Some snow falls on the mountain peak during winter. It is located in a remote region of the county, 4 miles from the community of Warner Springs, 12 miles from Borrego Springs, and 50 miles from San Diego. The mountain and its immediate surroundings belong to the Los Coyotes Band of Cahuilla and Cupeno Indians. The summit and fire tower can be hiked via the Sukat Road route from the campground. Hikers and campers must pay an entry fee to access the area.The peak offers views of San Diego, Riverside, San Bernardino, and Imperial counties on a clear day. To the north, Mount San Jacinto and Mount San Gorgonio can be seen, and on a very clear day, Mount Baldy (Mount San Antonio) can be seen too. Toro Peak and San Rosa Mountain are visible due northeast. Looking east, the Anza-Borrego Desert State Park is visible, along with the Salton Sea. Visible to the south is Cuyamaca Peak, the second highest point in San Diego County. On a very clear day, urban San Diego can be seen across the mountains. Finally, to the west, the extreme vastness of the Pacific Ocean is visible, even Catalina Island. The furthest point visible is the Topatopa Mountains of Ventura County over one hundred and fifty miles away. Palomar Mountain is also a point of interest. Tree species found on the mountain peak include Jeffrey Pine, Ponderosa Pine, White Fir, Incense Cedar, and Sugar Pines with their trademark drooping branches. From 2010 through 2012, the mountain and the surrounding land were leased by the tribe to a military training business, Eagle Rock Training Center. The business was evicted in early 2012 at the conclusion of an acrimonious court dispute.

San Felipe Valley is an inland valley of the Peninsular Ranges, located in eastern San Diego County, California. Most of the valley is protected within the San Felipe Valley Wildlife Area.

Anza-Borrego Desert State Park (, AN-zə bə-RAY-goh) is a California State Park located within the Colorado Desert of southern California, United States. The park takes its name from 18th century Spanish explorer Juan Bautista de Anza and borrego, a Spanish word for sheep. With 585,930 acres (237,120 ha) that includes one-fifth of San Diego County, it is the largest state park in California and the second biggest park nationally.The park occupies eastern San Diego County and reaches into Imperial and Riverside counties, enveloping two communities: Borrego Springs, which is home to the park's headquarters, and Shelter Valley.

The Steele Burnand Anza-Borrego Desert Research Center is a research center at the Anza-Borrego Desert State Park in southern California. The facility is a spawn of the joint partnership between the University of California, Irvine, the Anza-Borrego Foundation, and the administration of the state park. UC Irvine originally had facilities on 3.75 acres of land in the area, and their reach was expanded by a 75-acre donation from the Anza-Borrego Foundation. The facility was formerly a country club. The complex includes a hall, two classrooms, a laboratory, and a kitchen. The area in which the facility is located receives 5-7 inches of rain per year.

Earthquake Valley is a desert valley east of Julian, California, which contains parts of the Anza-Borrego Desert State Park. It is the location of the Shelter Valley Ranchos subdivision, which is also known as the unincorporated community of Shelter Valley. The official USGS place name for the geologic feature in which Shelter Valley is situated is "Earthquake Valley", and the 1959 USGS Topographic map makes no reference to Shelter Valley. The name of the unincorporated community Shelter Valley is typically used both locally and by the media to refer generally to the geological feature of Earthquake Valley, and it is common for both names to be referenced in publications after the 1962 establishment of the subdivision. Author, poet, artist and primitivist Marshal South lived in and wrote about the general area (including Julian, Mason Valley, Vallicito Valley, and his home in Blair Valley), in a series of articles for Desert Magazine between 1941 and 1948. A number of notable trails pass through the valley, including the Pacific Crest Trail, the California Riding and Hiking Trail, and the Southern Emigrant Trail.

Warner's Ranch, near Warner Springs, California, was notable as a way station for large numbers of emigrants on the Southern Emigrant Trail from 1849 to 1861, as it was a stop on both the Gila River Trail and the Butterfield Overland Mail stagecoach line (1859-1861). It was also operated as a pioneering cattle ranch. The 221-acre (0.89 km2) property, with two original adobe buildings from 1849 and 1857, was declared a California Historical Landmark in 1939, and a National Historic Landmark in 1961. There is evidence that travelers stayed at the original 1849 ranch house. The ranch is located 4 miles (6.4 km) south of Warner Springs.

Warner Springs is set of springs and a small unincorporated community in northern San Diego County, California. Warner Springs is on the Pacific Crest Trail.

Banner (formerly Banner City) is an unincorporated community in San Diego County, California. It lies at an elevation of 2743 feet (836 m). It is located on California State Route 78.