Silverado High School (Mission Viejo)

Saddleback Valley refers to the flat and foothill areas west-southwest of the Saddleback mountain peak of the Santa Ana Mountains and east-northeast of the hilly Crystal Cove State Park in South Orange County, California. The region primarily encompasses the cities of Mission Viejo, Lake Forest, and Rancho Santa Margarita, as well as the communities of Coto de Caza and Ladera Ranch. The cities of Aliso Viejo, Laguna Woods, Laguna Hills, and Laguna Niguel, as well as some of Orange County's eastern canyon communities, partially reside within the valley. The southeastern portion of Irvine also encroaches upon the area, but the two are not typically associated with each other. The cityscape within Saddleback Valley is suburban, a remote reach of the Los Angeles Metropolitan Area. The area is recently developed and on the outskirts of the Southern California megalopolis, so wildlife sightings are more common. Snakes, coyotes, and mountain lions have long inhabited the area. Mountain lion attacks on people have happened in the outlying wilderness parks of Saddleback Valley, but they are very rare.

The Actors Workshop is one of southern California's oldest film acting programs and is generally associated with the Sanford Meisner and Charles Conrad techniques. The company was established by its parent company, Shannon & Company.

El Toro High School is a public high school in Lake Forest, California, United States. It is one of five high schools in the Saddleback Valley Unified School District (SVUSD) and serves Lake Forest and its district of Portola Hills and a small portion of east Irvine. "El Toro" was the name of the community from the 1870s until a referendum in 1991. The school has served the area since 1973. The current principal of the school is Terri Gusiff.

Rancho Cañada de los Alisos was a 10,668-acre (43.17 km2) Mexican land grant in present-day Orange County, California given by Governor Juan Bautista Alvarado to Jose Antonio Fernando Serrano in 1842, and enlarged by a second grant by Pio Pico in 1846. The name means "Glen of the Alders" in Spanish, after the native White Alder (Alnus rhombifolia) trees growing there. The rancho included the present day cities of Lake Forest (formerly El Toro), and the Marine Corps Air Station El Toro—Orange County Great Park site in Irvine.

The José Serrano Adobe is a historic 1863 adobe house in Lake Forest, Orange County, California. The property is one of four historic buildings in the Heritage Hill Historic Park. It was listed on the National Register of Historic Places on May 24, 1976.

Lake Forest is a city in Orange County, California. The population was 85,858 at the 2020 census. Lake Forest incorporated as a city on December 20, 1991. Prior to incorporation, the community had been known as El Toro. Following a vote in 2000, Lake Forest expanded its city limits to include the master-planned developments of Foothill Ranch and Portola Hills. This expansion brought new homes and commercial centers to the northeastern boundary of the city. Lake Forest has two lakes from which the city gets its name. The lakes are man-made, and condominiums and custom homes ranging from large to small line their shores. Neighborhood associations manage the lakes (Lake 1, known as the Lake Forest Beach and Tennis Club, and Lake 2, the Sun and Sail Club.) Each facility features tennis courts, gyms, basketball courts, barbecue pits, volleyball courts, multiple swimming pools, saunas, hot tubs and club houses for social events. The "forest" for which the city is also named lies in the area between Ridge Route, Jeronimo, Lake Forest and Serrano roads, and consists mostly of Eucalyptus trees. It is also man-made, and was created in the first decade of the 1900s when a local landowner, Dwight Whiting, planted 400 acres (1.6 km2) of Eucalyptus groves in the vicinity of Serrano Creek as part of a lumber operation intended to draw development to the area. In the late 1960s, the Occidental Petroleum company developed a residential community in and around the Eucalyptus groves, which had long since expanded and grown much more dense.

Laguna Hills Mall was a shopping mall in Laguna Hills, California, in southern Orange County that is being redeveloped by the owners as Five Lagunas. The enclosed mall closed on December 31, 2018 and will be demolished. The exterior stores remain open. New retail, a movie theater, apartments, and a parking structure are currently planned to replace the old mall structure.

Laguna Hills (; Laguna, Spanish for "Lagoon") is a city in Orange County, California, United States. Its name refers to its proximity to Laguna Canyon and the much older Laguna Beach. Other newer cities nearby—Laguna Niguel and Laguna Woods—are similarly named.

Area code 949 is an area code in California that is contained within South Orange County California. On April 18, 1998, the southern cities of Orange County were split from 714, creating area code 949. It includes some of the wealthiest communities in California; including such cities as Newport Beach, Irvine, Lake Forest, Portola Hills, Coto de Caza, Dove Canyon, Aliso Viejo, Trabuco Canyon, Capistrano Beach, Corona Del Mar, Laguna Niguel, Laguna Hills, Laguna Woods, Newport Coast, Foothill Ranch, Robinson Ranch, Mission Viejo, San Juan Capistrano, Rancho Santa Margarita, Ladera Ranch, Dana Point, Laguna Beach, and San Clemente. The city of Costa Mesa is shared between the 949 and 714 area codes, being split at Wilson Street and along Newport Boulevard. A very small portion of Irvine is also in the 714 area code, from the north side of Culver Drive at the I-5 to Jamboree Road in the Marketplace, in the neighborhood of Northpark Irvine.

The Monterey Formation is an extensive Miocene oil-rich geological sedimentary formation in California, with outcrops of the formation in parts of the California Coast Ranges, Peninsular Ranges, and on some of California's off-shore islands. The type locality is near the city of Monterey, California. The Monterey Formation is the major source-rock for 37 to 38 billion barrels of oil in conventional traps such as sandstones. This is most of California's known oil resources. The Monterey has been extensively investigated and mapped for petroleum potential, and is of major importance for understanding the complex geological history of California. Its rocks are mostly highly siliceous strata that vary greatly in composition, stratigraphy, and tectono-stratigraphic history. The US Energy Information Administration (EIA) estimated in 2014 that the 1,750 square mile Monterey Formation could, as an unconventional resource, yield about 600 million barrels of oil, from tight oil contained in the formation, down sharply from their 2011 estimate of a potential 15.4 billion barrels. An independent review by the California Council on Science and Technology found both of these estimates to be "highly uncertain." Despite intense industry efforts, there has been little success to date (2013) in producing Monterey-hosted tight oil/shale oil, except in places where it is already naturally fractured, and it may be many years, if ever, before the Monterey becomes a significant producer of shale oil. The Monterey Formation strata vary. Its lower Miocene members show indications of weak coastal upwelling, with fossil assemblages and calcareous-siliceous rocks formed from diatoms and coccolithophorids. Its middle and upper Miocene upwelling-rich assemblages, and its unique highly siliceous rocks from diatom-rich plankton, became diatomites, porcelainites, and banded cherts.

Mission Viejo High School is a four-year comprehensive public high school located in Mission Viejo, California, United States, as part of the Saddleback Valley Unified School District. The school has served the area since 1966. Students within its attendance boundaries live in western Mission Viejo, southwest Lake Forest, Trabuco Canyon, Rancho Santa Margarita, and Laguna Hills. Its mascot is Pablo the Diablo and its colors are scarlet and gold. 230 credits are required to graduate. It is the home to one of the only agricultural farms on a high school campus in the Saddleback Valley Unified School District. In the 2014–2015 school year, the school had an enrollment of 2,438 students and 92.7 classroom teachers (on an FTE basis), for a student–teacher ratio of 26.3:1. There were 333 students (13.7% of enrollment) eligible for free lunch and 100 (4.1% of students) eligible for reduced-cost lunch.

Laguna Hills Technology Branch Library is one of two "technology branches" within the 33-branch Orange County Public Libraries (OCPL) system.