Glen Helen Regional Park is a county park located in San Bernardino, California, United States adjacent to the Cajon Pass. It is also home to the Glen Helen Amphitheater, the largest outdoor amphitheater in the United States.
Corona is located in western Riverside County, east of Orange County. Corona, located along the western edge of Southern California’s Inland Empire region. It is one of the most residential cities in the Inland Empire, but also has a large industrial section on the northern city limits.