Rancho El Cajon

Bostonia is a neighborhood in San Diego County, California, comprising part of the northeastern portion of the city of El Cajon, as well as adjacent unincorporated areas of San Diego County. The portion of Bostonia that lies outside the El Cajon city limits is classified as a census-designated place (CDP) for statistical purposes by the United States Census Bureau. The population of the CDP was 15,379 at the 2010 census, up from 15,169 at the 2000 census.

The Museum of Creation and Earth History is a young earth creationist promotional facility opened by the Institute for Creation Research at its original headquarters in Santee, California in 1992, replacing an earlier museum located in the institute's basement. It cost $50,000, and took 2 years to complete.After the Institute for Creation Research moved from Santee to Dallas, Texas in 2008, it sold the Museum to the Life and Light Foundation, a non-profit ministry run by Tom Cantor.The exhibits claim to prove that the Earth is no older than about 10,000 years, and suggest that man and dinosaurs coexisted before Noah's flood, which also created the Grand Canyon. Also featured are an interpreted walk through the Garden of Eden with a literal depiction of the six days in the Genesis, a dark room with pictures of the planets and stars, scale models of Noah's Ark and the Tower of Babel, an Ice Age room, the Canyon Wall, describing how the Grand Canyon was formed in a matter of weeks or months, rather than the millions of years posited by most geologists, and the Hall of Scholars with pictures and biographies of scientists who believed in creationism rather than accepting evolution. It also has a display about the ICR's RATE project, an effort, in conjunction with other young Earth creationist organizations, to find evidence of a young earth. In 2013 the Museum was denied accreditation by the San Diego Museum Council.

Gillespie Field (IATA: SEE, ICAO: KSEE, FAA LID: SEE) is a county-owned public towered airport 11.5 miles (10.0 nmi; 18.5 km) northeast of downtown San Diego, in El Cajon, San Diego County, California, United States.

Edgemoor Farm Dairy Farm was built as part of a dairy farm in 1913 in Santee, California. Edgemoor was part of a Spanish land grant to Maria Antonio Estudillo who married Miguel de Pedrorena, a native of Madrid. By the 1850s, through a variety of ways, individuals obtained portions of the grant and began to farm. Walter Hamlin Dupee purchased Edgemoor Farm in 1913 and built it into a national award-winning dairy farm, polo pony ranch and early tourist attraction. Such was his prominence that the Guernsey Breeders Association in 1921 called his place "the foremost authority and breeder in the U.S.", having given the most grand champions at this ranch founded by John and Walter Dupee. Dupee said, "I am interested in pure breeding stock, modern equipment, and scientific methods, which I place at the disposal of all dairymen". A series of personal setbacks and problems brought Dupee to sell Edgemoor to Godfrey L. Strobeck.

Winter Gardens is a census-designated place (CDP) in San Diego County, California. The population was 20,631 at the 2010 census, up from 19,771 at the 2000 census.

River Valley Charter School is a charter junior high/high school established in 1996 in Lakeside, California. It is a part of the Lakeside Union School District, LUSD. It is based on a partial-independent study program, in which most students attend two class days per week. As much as 50% of the River Valley students come from home-school backgrounds. River Valley has been fully accredited by the Western Association of Schools and Colleges since 2002.

ASTREA is an acronym for Aerial Support To Regional Enforcement Agencies, the air support unit of the San Diego County Sheriff's Department. ASTREA Base is located at Gillespie Field Airport (IATA: SEE, ICAO: KSEE) in El Cajon, California.

El Cajon Valley High School (ECVHS) is a comprehensive public secondary school located in El Cajon, California, which is in the eastern county of San Diego, and serves students in grades nine through twelve. Established in 1955, El Cajon Valley is the third of twelve high schools to be built in the Grossmont Union High School District. ECVHS is the home of the Braves. El Cajon Valley High school is accredited by the Western Association of Schools and Colleges (WASC).

Parkway Plaza is a shopping mall in El Cajon, California. The mall's anchor stores are Crunch Fitness, Dick's Sporting Goods, Ashley HomeStore, Bob's Discount Furniture, Burlington, Extra Space Storage, Walmart, Regal Cinemas, and JCPenney.

San Diego Christian College (SDCC) is a private, evangelical college in Santee, California, a suburb of San Diego. Founded in 1970, SDCC offers traditional, non-traditional, and graduate programs.

Gillespie Field station is a Green Line station of the San Diego Trolley in the San Diego suburb of Santee, California. It is located across Marshall Avenue from Gillespie Field, a county airport which also contains an annex of the San Diego Air & Space Museum. It was ranked worst rail station in California in a 2015 UC Berkeley School of Law study, due to its sparse, unwalkable location and lack of ridership. Study co-author Elkind was quoted in the press, “I almost wondered if there was really a station out there or if we got the GPS wrong. It looked like cow pastures.”

Los Coches Creek is a 9.4-mile-long (15.1 km) tributary of the San Diego River in southern San Diego County, California.It has its source 3 miles east of the community of Flinn Springs and El Cajon. It flows west through the former Rancho Cañada de los Coches area, then turns northwest to its confluence with the San Diego River.