Aliso Canyon is the largest natural gas storage facility in California, located about 40 miles northeast of Los Angeles.
The facility was originally an oil field discovered in 1938 by J. Paul Getty's company.
It has been in operation since the 1950s, with a significant conversion to gas storage in the 1970s.
Despite the 2015 disaster, the facility continues to be a critical part of Southern California's energy infrastructure.
The surrounding Aliso and Wood Canyons Wilderness Park offers a stark contrast with its natural beauty, featuring over 30 miles of trails and diverse wildlife.