Rancho Valle de San Jose (Portilla)

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.

Rancho San José del Valle (also called "Rancho Agua Caliente" or "Warner's Rancho") was a 26,689-acre (108.01 km2) Mexican land grant in present-day San Diego County, California given in 1840 by Governor Juan B. Alvarado to José Antonio Pico, and then given in 1844 by Governor Manuel Micheltorena to Juan José Warner. The most northeasterly grant made within present-day San Diego County, it was bounded on the west by Palomar Mountain, and on the south by Buena Vista Creek and Rancho Valle de San Jose, and encompassed present-day Warner Springs. The western part of the grant is under the waters of Lake Henshaw, formed in 1922 by a dam on the San Luis Rey River.

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.

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.

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.

Black Mountain is a summit in the Cleveland National Forest of the Peninsular Ranges in eastern San Diego County, California, north of Ramona. The peak is measured at 4,048 feet (1,234 m), and is sometimes referenced as Big Black Mountain to distinguish it from the smaller Rancho Peñasquitos Black Mountain Open Space Park in the city of San Diego. Black Mountain offers a WX channel for people who wish to tune in on radios to hear the weather; channel is located on VHF frequency 162.4000 MHz. Black Mountain is home to one of the largest remaining tracts of the threatened Engelmann Oak (Quercus engelmannii).

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

Oak Grove is an unincorporated community in northern San Diego County, California, United States. The community is on California State Route 79, 22 miles (35 km) east-southeast of Temecula. It is home to the Oak Grove Butterfield Stage Station.

Ranchita (Spanish for "small ranch") is an unincorporated community in San Diego County, California. Ranchita is 9 miles (14 km) southwest of Borrego Springs. Ranchita has a ZIP code of 92066. A notable feature is the Rancheti, an 11-foot-tall (3.35 m), 300-pound (136.08 kg) fiberglass Yeti statue erected by local real estate broker Joe Rauh on Montezuma Valley Road in December 2007. The statue was featured on the March 4, 2016 installment of Zippy.

Whale Mountain is a 3,043-foot (928 m), summit in the northwestern Cuyamaca Mountains in San Diego County, California. It is located between Ramona and Santa Ysabel, near Ballena Valley. Ballena takes its name from the mountain, ballena being Spanish for "whale". The Spanish name was the equivalent of the Ipai word ipank which also means "whale", and which was their name for the mountain.Whale Mountain is known for being desert-like and containing many desert plants and animals, such as cacti.

Oak Grove Butterfield Stage Station is located in the western foothills of the Laguna Mountains, in northern San Diego County, California. It is located on State Route 79, 13 miles (21 km) northwest of Warner Springs and Warner's Ranch. The station was built on the site of Camp Wright, an 1860s Civil War outpost.

Julian Charter School (JCS) is a publicly funded independent study charter school sponsored by the Julian Union Elementary District. Although the main office is in Julian, California, JCS serves over 2,000 students across San Diego, Riverside, Orange, and Imperial counties. Established in 2000, the school serves approximately 2,100 students in kindergarten through grade 12 via homeschooling or small academy locations.