Mauna Loa

Volcano, south-central Hawaii Island, Hawaii, U.S., and a part of Hawaii Volcanoes National Park (established as Hawaii National Park in 1916). One of the largest single mountain masses in the world, Mauna Loa (meaning “long mountain”) rises to 13,678 feet (4,169 m) above sea level. Its dome is 75 miles (120 km) long and 64 miles (103 km) wide, and its lava flows occupy more than 2,000 square miles (5,120 square km) of the island. Mokuaweoweo,