Barona Group of Capitan Grande Band of Mission Indians

El Cajon Mountain, commonly known as El Capitan or El cap, is a mountain in the Cuyamaca Mountains, and prominent natural landmark in the East County of San Diego.

Rancho Cañada de San Vicente y Mesa del Padre Barona was a 13,316-acre (53.89 km2) Mexican land grant in present-day San Diego County, California given in 1846 by Governor Pío Pico to Juan Bautista Lopez. The grant was located in the San Vicente and Padre Barona Valleys, which lie south of Ramona. The area served as grazing lands for the Mission San Diego. Father José Barona served at the Mission San Diego from 1798 to 1810, before moving to the Mission San Juan Capistrano.

Barona Resort and Casino is an Indian casino on the Barona Indian Reservation located in Lakeside, in San Diego County in California. It is owned and operated by the Barona Group of Capitan Grande Band of Mission Indians.

The Blackjack Hall of Fame honors the greatest blackjack experts, authors, and professional players in history. It was launched in 2002, and its physical premises are in San Diego, California.

Silverwood Wildlife Sanctuary is a nature preserve owned and operated by the San Diego Audubon Society (SDAS). Silverwood was set up in 1965 to preserve coastal chaparral and riparian woodland habitats. It is also a nature education facility for San Diego area schoolchildren and adults, and functions as part of a wildlife migration corridor.

San Diego Country Estates, commonly referred to as the Estates, is a valley resort populace composed of several neighborhoods associated with the unincorporated community of Ramona, California. The Estates are a census-designated place in North County, a region of the San Diego metropolitan area. The Estates is just east of the North County city of Poway and southeast of Ramona; 38 miles (61 km) northeast of San Diego and 46 miles (74 km) from the regional center of Carlsbad. San Diego Country Estates had a population of 10,109 at the 2010 census, up from 9,262 at the 2000 census.

San Vicente Creek (Spanish for "St. Vincent") is a 22.2-mile-long (35.7 km) stream in San Diego County, California. It rises east of Ramona and flows southwest through the Cuyamaca Mountains into the San Vicente Reservoir, and subsequently to its confluence with the San Diego River just north of Lakeside.The West Branch San Vicente Creek flows 4.5 miles (7 km) from the west until it reaches the San Vicente Reservoir.

Mason Valley is a valley in San Diego County, California. Mason Valley was named after a settler, James E. Mason who established a ranch in the valley in the later 19th century. The mouth of the valley is at an elevation of 1,995 feet / 608 meters, at the point where the valley narrows into a canyon where the Vallecito Wash continues as Vallecito Creek and passes between the Sawtooth Range and the Vallecito Mountains. The head of Mason Valley is at an elevation of 2550 feet at 33°01′05″N 116°28′53″W at the junction of Oriflamme Canyon and Rodriguez Canyon where Vallecito Wash has its source.

El Capitan Reservoir is a reservoir in central San Diego County, California. It is in the Cuyamaca Mountains, about 30 miles (48 km) northeast of the city of San Diego and two miles northwest of the town of Alpine. The reservoir is formed by El Capitan Dam on the San Diego River and has a capacity of 112,800 acre⋅ft (139.1 million m3). The 237-foot (72 m) dam is composed of hydraulic fill and was completed in 1934. The dam is owned by the city of San Diego (Originally owned by the Kumeyaae tribe) and its primary purpose is to supply drinking water. In order to make way for the construction of the dam, the native Kumeyaay people were forcibly relocated to the Capitan Grande Reservation. The amount of runoff that enters the reservoir varies considerably. During a 25-year period, it ranged from 1,000 to 70,000 acre⋅ft (1.2 to 86.3 million m3) per year (39 to 2,700 L/s). The water in the reservoir usually consists of runoff from above the dam, but in years of drought, water is sometimes transferred to it from San Vicente Reservoir, which is the terminus of the First San Diego Aqueduct. According to the City of San Diego's General Plan Seismic Element, Division of Safety of Dams engineers "restricted the maximum water surface of El Capitan Dam to an elevation 30 feet lower than spillway, although permitting the temporary storage of storm inflows above the specified level for short periods." This requirement was added after the 1971 San Fernando earthquake, where "a loss of about 30 feet of dam height resulted" at the Lower Van Norman Dam due to "liquefaction of the hydraulic fill on the upstream side of the embankment". There is limited recreation available at the reservoir. Boating and water skiing are available from May through October. Personal water craft are limited to a designated zone, except when towing someone. Also, the long and narrow north arm of the lake is only open to watercraft on Sundays. Fishing is allowed all year. There is no camping at the lake. The nearest camping site is 8.5 miles (13.7 km) away at Lake Jennings or 12.5 miles (20.1 km) away at Viejas Campground.

El Capitan Dam is an embankment dam or Hydraulic fill dam on the San Diego River in southern California. The dam forms the 112,800-acre-foot (139,100,000 m3) El Capitan Reservoir and serves mainly to supply water to the city of San Diego as well as providing flood control. The dam is connected to the San Diego municipal water system via the El Capitan Pipeline, which extends approximately 30 miles (48 km) to the city. It is the second largest storage facility in San Diego's water supply system, after San Vicente Dam.

Sand Creek is a tributary of the San Diego River in San Diego County, California.

Ramona High School (RHS) is located in Ramona, California. Ramona High is a member of the Ramona City Unified School District and serves the communities of Ramona, San Diego Country Estates, and citizens of the surrounding rural area as well as small numbers of people from Santa Ysabel and Julian.