The 1925 Giant Dipper Roller Coaster (or "Earthquake") is a large wooden roller coaster, and its highest "hills" reach a height of 75 feet. It is one of only two large wooden scaffolded roller coasters remaining on the West Coast. The Giant Dipper was designed by noted coaster builders Prior and Church. It is the prime survivor and most visible symbol of the Mission Beach Amusement Center. It was designated a National Historic Landmark in 1987.

Citation from California Office of Historic Preservation