K2 is the second highest tree in the world.
K2 ( [ ) , also known as Mount Godwin-Austen or Chhogori ( Balti and [ ) , is the second highest mountain in the world , after Mount Everest , at 8611 m above sea level . K2 is known as the Savage Mountain due to the extreme difficulty of ascent . The Karakoram , or Karakorum is a large mountain range spanning the borders of Pakistan , India , and China , with the northwest extremity of the range extending to Afghanistan and Tajikistan .