Mageik Volcano, Alaska, USA

U.S. Geological Survey photo by R. McGimsey (fair use policy)
Mount Mageik is a volcano 2165 m high in Katmai National Park, on the Alaska Peninsula. It's a typical peak of the composite stratovolcano type, a lumpy, complex cone built up by a mixture of eruptions big and small, explosive and gentle, from more than one vent. Mageik sits at the head of the Valley of Ten Thousand Smokes, which got its name after the great Katmai eruption of 1912. Although Mageik has a boiling, fuming crater lake at its peak, it has not erupted in historic times.

