Mauna Kea

Dormant volcano in north-central Hawaii Island, Hawaii, U.S., and the focus of a state park (500 acres [202 hectares]). It is the highest point in the state (13,796 feet [4,205 m] above sea level), and its name means �white mountain,� so-called because it is often snowcapped. The dome is 30 miles (48 km) across, with numerous cinder cones, and is the site of a major astronomical observatory. Lava flows from Mauna Kea