Which mountain is taller, Istor-o-Nal or Siguang Ri?
Istor-o-Nal Istor-o-Nal or इस्तोर-ओ-नल is the third highest mountain in the Hindu Kush, in the Chitral District of the North-West Frontier Province of Pakistan. It is the 68th highest independent peak in the world. It crowns a massif with eleven peaks of elevation more than 7000 m . The peak is located a few kilometres northeast of Tirich Mir (the highest mountain in the Hindu Kush), across the Tirich Glacier. Because Istor-o-Nal is behind the higher peak of Tirich Mir from many viewpoints, it is not easily visible and therefore not well known.
Uli Biaho Uli Biaho (Urdu: اولی بیاہو‎ ) is a mountain near Trango Towers and Baltoro Glacier in the Gilgit–Baltistan area of Pakistan. It consists of two main peaks, Uli Biaho Tower (listed by Roskelley as 19,957 feet, and by Kopold as 6109 m ); and Uli Biaho Peak (Kopold: 6417 m), which as of 2006 was unclimbed.