Changbai, Paektu, or Baektu Muntain is an active volcano on the border atween North Korea an Cheenae. At 2,744 m (9,003 ft), it is the heichest muntain o the Changbai an Baekdudaegan ranges. It is an aa the heichest muntain on the Korean Peninsula an in northeastren Cheenae. A lairge crater loch, cried Heaven Loch, is in the caldera atop the muntain.