Question: Between Namcha Barwa and Trivor, which is one of the high peaks of the Hispar Muztagh?
Context: Gyala Peri (Chinese: 加拉白垒, Pinyin: "Jiālābáilěi") is a peak just beyond the eastern end of the Himalayas at the entrance to Tsangpo gorge.  It is part of Nyenchen Tanglha Shan, although it is sometimes included in Namcha Barwa Himal of the Himalayas. The Yarlung Tsangpo Grand Canyon or Yarlung Zangbo Grand Canyon () or simply the Tsangpo Canyon, Brahmaputra Canyon or Tsangpo Gorge, along the Yarlung Tsangpo River in Tibet, China, is the deepest canyon in the world, and at 504.6 km (314 miles) is slightly longer than the Grand Canyon in the United States, making it one of the world's largest.  The Yarlung Tsangpo (Tibetan name for the upper course of the Brahmaputra) originates near Mount Kailash and runs east for about 1700 km, draining a northern section of the Himalayas before it enters the gorge just downstream of Pei, Tibet near the settlement of Zhibe.  The canyon has a length of about 150 miles (240 km) as the gorge bends around Mount Namcha Barwa (7782 m) and cuts its way through the eastern Himalayan range.  Its waters drop from about 2,900 m near Pei to about 1,500 m at the end of the Upper Gorge where the Po Tsangpo River enters.  The river continues through the Lower Gorge to the Indian border at an elevation of 660 m.  The river then enters Arunachal Pradesh and eventually becomes the Brahmaputra. Hispar Muztagh is a sub-range of the Karakoram mountain range.  It is located in the Gojal region of Gilgit-Baltistan, Pakistan, north of Hispar Glacier, south of Shimshal Valley, and east of the Hunza Valley.  It is the second highest sub-range of the Karakoram, the highest being the Baltoro Muztagh.  The highest mountain in the range is Distaghil Sar (7,885m/25,869 ft). Namcha Barwa Himal, also known as Namjagbarwa syntaxis or Namjagbarwa Group Complex, is the easternmost section of the Himalaya in southeastern Tibet and northeastern India.  This section spans 180 km from the headwaters of the Siyom River on the international border NE into Tibet to the canyon of the Yarlung Tsangpo (the Brahmaputra in India), where the Himalaya are said to end, although high ranges actually continue another 300 km east.  Major peaks of this section include: Pumari Chhish (Urdu: ‎ ), (or Pumarikish, Peak 11) is a high peak of the Hispar Muztagh, a subrange of the Karakoram range.  It lies about 4 km east of Khunyang Chhish, in the heart of the Hispar, north of the Hispar Glacier. Trivor (Urdu: ترِووُر‎ ) is one of the high peaks of the Hispar Muztagh, a subrange of the Karakoram range in the Gilgit-Baltistan of Pakistan. Mount Colvin is the 39th highest peak in the High Peaks Region of the Adirondack Mountains, in the state of New York, USA.  Mount Colvin offers excellent views of a number of other Adirondack High Peaks, most notably the peaks that comprise the Great Range.  High Peaks that are readily visible from Colvin include Giant, Rocky Peak Ridge, Upper Wolfjaw, Lower Wolfjaw, Armstrong, Sawteeth, Gothics, Saddleback, Basin, Tabletop, Marcy, Haystack, Redfield, Allen, Nippletop, Dial, and Blake.  The mountain is named after Verplanck Colvin, an explorer of the Adirondacks and the director of the survey which mapped the region.  After naming many other peaks and geographic features, he chose this less-prominent mountain to name after himself. Namcha Barwa or Namchabarwa (Tibetan: གནམས་ལྕགས་འབར་བ། , Wylie: "Gnams lcags 'bar ba", ZYPY: Namjagbarwa Momhil Sar, or Mumhail Sar as pronounced in Wakhi is at 7343 m above sea level, is the 64th highest mountain peak in the world.  Mumhail Sar in Wakhi means the mountain that overlooks or is above Grandmother's cattle pen or paddock.  It is situated in the Hispar Muztagh subrange of the Karakoram range, a few kilometres to the north-west of its parent peak Trivor. Assam Himalaya is a traditional designation for the portion of the Himalaya range between the eastern border of Bhutan, on the west, and the Great Bend of the Tsangpo River, on the east.  The highest peak of this range is Namcha Barwa.  Other high peaks include Gyala Peri, sister peak to Namcha Barwa; Kangto, and Nyegyi Kangsang.  The area is still poorly surveyed in general, and little visited by outsiders.
Answer: Trivor