CORONA, a city of Riverside county, California, U.S.A., 45m. E.S.E. of Los Angeles, on Temescal creek, and served by the Santa Fe Railway. The population was 7,018 in 193o. There are mineral springs and quarries (cement, lime, clay and porphyry) in the vicinity. Natural gas is used. The city ships oranges, lemons and other fruits, beets and alfalfa, and manufactures lemon prod ucts, boxes, sewer pipe, terra-cotta, pressed brick and chemicals.