Oʻahu (usually Oahu outside Hawaiian and Hawaiian English), the "Gathering Place", is the third largest of the Hawaiian Islands and most populous island in the State of Hawaiʻi. Including small close-in offshore islands such as Ford Island and the islands in Kaneohe Bay and off the eastern coast, it has a total land area of 1,545.3 km² (596.7 mile²). In greatest dimension, this volcanic island is 71 km (44 mi) long and 48 km (30 mi) across. The length of the shoreline is 366 km (227 mi). The island is the result of two separate shield volcanoes: Waiʻanae and Koʻolau, with a broad "valley" or saddle (the central Oʻahu Plain) between them. The highest point is Mt. Kaʻala in the Waiʻanae Range, rising to 1,220 m (4,003 ft) above sea level.