Mount Erebus is an active volcano located on Ross Island in Antarctica. It is one of the southernmost volcanoes in the world and is known for its persistent lava lake, which is a rare feature among volcanoes. The mountain stands at about 3,794 meters (12,448 feet) above sea level and is part of the McMurdo Dry Valleys region. The volcano was discovered in 1841 by the British explorer James Clark Ross, who named it after a character from Greek mythology. Mount Erebus is continuously monitored due to its activity, providing valuable insights into volcanic processes and the unique environment of Antarctica.