Upper Las Virgenes Canyon Open Space Preserve

Bell Canyon is an unincorporated community in eastern Ventura County, California, United States. Bell Canyon is a gated community in the Simi Hills with the main access through the Los Angeles community of West Hills and the western San Fernando Valley. Bell Canyon sits at an elevation of 1,368 feet (417 m). The 2020 census reported Bell Canyon's population was 1,946. For statistical purposes, the Census Bureau has defined Bell Canyon as a census-designated place (CDP). According to a 2016 study, Bell Canyon is the seventh wealthiest community in the state of California with an annual median income of $230,000.

Oak Park Unified School District (OPUSD) is a K-12 school district in southeast Ventura County, California, USA. It consists of seven public schools in the community of Oak Park.

Bell Canyon Park is a large open-space regional park located in the Simi Hills at the western end of the San Fernando Valley in West Hills, Los Angeles and Bell Canyon, California. Bell Creek, a primary tributary to the Los Angeles River, flows through the park with riparian zone vegetation along its natural banks. The geographic landmark Escorpión Peak (Castle Peak) is high above it to the south in adjacent El Escorpión Park.

The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County and western Los Angeles County, of southern California, United States.

Hidden Hills is a city and gated community in the Santa Monica Mountains region of Los Angeles County, California. It is located next to the cities of Los Angeles and Calabasas. The population was 1,725 at the 2020 census.

New Village Leadership Academy (NVLA), also known as New Village Academy, was a private elementary school located in Calabasas, California, USA. Indian Hills High School previously used the campus, and in 2008 actor Will Smith funded New Village Academy and leased the Calabasas facilities for three years.Smith and his wife Jada Pinkett Smith selected the management for the school. Educational methodologies used by the school include Study Technology, Montessori education, Gardner, and Bruner methods. The school closed on June 28, 2013.

Atomics International was a division of the North American Aviation company (later acquired by the Rockwell International company) which engaged principally in the early development of nuclear technology and nuclear reactors for both commercial and government applications. Atomics International was responsible for a number of accomplishments relating to nuclear energy: design, construction and operation of the first nuclear reactor in California (1952), the first nuclear reactor to produce power for a commercial power grid in the United States (1957) and the first nuclear reactor launched into outer space by the United States (1965).Atomics International undertook the development of nuclear reactors soon after being established: a series of commercial nuclear power reactors beginning with the Sodium Reactor Experiment (SRE) and a range of compact nuclear reactors culminating with the Systems for Auxiliary Nuclear Power SNAP-10A system. Both efforts were successful, despite nuclear accidents at the Santa Susana Field Laboratory, but overall interest in nuclear power steadily declined. The division transitioned to non-nuclear energy-related projects such as coal gasification and gradually ceased designing and testing nuclear reactors. Atomics International was eventually merged with another division (Rocketdyne division) of the same parent company (Rockwell International). As of 2010, all of the Atomics International facilities, except for the few remaining facilities located in the Area IV test area at the Santa Susana Field Laboratory (SSFL), have been demolished, cleaned and reused, or awaiting final cleanup.

The Santa Susana Field Laboratory (SSFL), formerly known as Rocketdyne, is a complex of industrial research and development facilities located on a 2,668-acre (1,080 ha) portion of Southern California in an unincorporated area of Ventura County in the Simi Hills between Simi Valley and Los Angeles. The site is located approximately 18 miles (29 km) northwest of Hollywood and approximately 30 miles (48 km) northwest of Downtown Los Angeles. Sage Ranch Park is adjacent on part of the northern boundary and the community of Bell Canyon is along the entire southern boundary.SSFL was used mainly for the development and testing of liquid-propellant rocket engines for the United States space program from 1949 to 2006, nuclear reactors from 1953 to 1980 and the operation of a U.S. government-sponsored liquid metals research center from 1966 to 1998. Throughout the years, about ten low-power nuclear reactors operated at SSFL, (including the Sodium Reactor Experiment, the first reactor in the United States to generate electrical power for a commercial grid, and the first commercial power plant in the world to experience a partial core meltdown) in addition to several "critical facilities" that helped develop nuclear science and applications. At least four of the ten nuclear reactors had accidents during their operation. The reactors located on the grounds of SSFL were considered experimental, and therefore had no containment structures. The site ceased research and development operations in 2006. The years of rocket testing, nuclear reactor testing, and liquid metal research have left the site "significantly contaminated". Environmental cleanup is ongoing. The public who live near the site have strongly urged a thorough cleanup of the site, citing cases of long term illnesses, including cancer cases at rates they claim are higher than normal. On 30 March 2018, a seven-year-old girl living in Simi Valley died of neuroblastoma, prompting public urging to thoroughly clean up the site. Experts have said, however, that there is insufficient evidence to identify an explicit link between cancer rates and radioactive contamination in the area.

On January 26, 2020, a Sikorsky S-76B helicopter crashed in the city of Calabasas, California, around 30 mi (48 km) northwest of Downtown Los Angeles, while en route from John Wayne Airport to Camarillo Airport. All nine people on board were killed: retired professional NBA basketball player Kobe Bryant, his 13-year-old daughter Gianna, baseball coach John Altobelli, his wife Keri, his daughter Alyssa, Payton Chester, her mother Sarah, basketball coach Christina Mauser, and the pilot, Ara Zobayan.The accident was investigated by the National Transportation Safety Board (NTSB) which concluded that it was caused by continued VFR into IMC: the helicopter entered low cloud cover, which caused the pilot to lose his sense of orientation, and thence lose control.

The Energy Technology Engineering Center (ETEC), was a government-owned, contractor-operated complex of industrial facilities located within the 2,850-acre (11.5 km2) Santa Susana Field Laboratory (SSFL), Ventura County, California. The ETEC specialized in non-nuclear testing of components which were designed to transfer heat from a nuclear reactor using liquid metals instead of water or gas. The center operated from 1966 to 1998. The ETEC site has been closed and is now undergoing building removal and environmental remediation by the U.S. Department of Energy.

The Wallis Annenberg Wildlife Crossing (sometimes Liberty Canyon Wildlife Crossing) is a vegetated overpass spanning the Ventura Freeway and Agoura Road under construction at Liberty Canyon in Agoura Hills, California. The bridge will be one of the largest urban wildlife crossings in the United States, connecting the Simi Hills and the Santa Monica Mountains over a busy freeway with ten traffic lanes, when including exit lanes.

Agoura () is an unincorporated community of Los Angeles County, which is located southeast of the city of Agoura Hills, California, adjacent to the city of Calabasas in Los Angeles County. Agoura was the historical name of the area, before much of the area was developed and before the incorporation of the city of Agoura Hills. There are a few nearby pockets of unincorporated areas that contain a handful of houses. Much of the area is also often referred to as the neighborhood of Old Agoura. The ZIP code is 91301 and the area codes are 747 and 818.