Question: Which mountain, Muztagh Tower or K2,  is the highest point of the Karakoram range and the highest point in both Pakistan and Xinjiang?
Sentence (from "K2"): It is located on the China-Pakistan border between Baltistan, in the Gilgit-Baltistan region of northern Pakistan, and the Taxkorgan Tajik Autonomous County of Xinjiang, China.
Relevant evidence: No