Question: K2 and Khartaphu, are both elevated land masses, what are they called?
Sentence (from "K2"): K2 (Urdu: ‎ ), also known as Mount Godwin-Austen or Chhogori (Balti and Urdu: ‎ ), is the second highest mountain in the world, after Mount Everest, at 8611 m above sea level.
Relevant evidence: Yes