What geographic features are Gasherbrum I and Tirich Mir?
Gasherbrum I Gasherbrum I (Urdu: ‎ ; ), surveyed as K5 and also known as Hidden Peak, is the 11th highest mountain in the world at 8080 m above sea level. It is located on the Pakistani–Chinese border in Gilgit–Baltistan region of Pakistan and Xinjiang region of China. Gasherbrum I is part of the Gasherbrum massif, located in the Karakoram region of the Himalaya. Gasherbrum is often claimed to mean "Shining Wall", presumably a reference to the highly visible face of the neighboring peak Gasherbrum IV; but in fact it comes from "rgasha" (beautiful) + "brum" (mountain) in Balti, hence it actually means "beautiful mountain."
Mount Dergach Mount Dergach ( ) is a flat-topped, ice-covered mountain located just west of Ob' Bay and south of Lunik Point, in the Bowers Mountains, a major mountain range of Victoria Land, Antarctica. The topographical feature was photographed from the air by U.S. Navy Operation Highjump, 1946–47. Surveyed by the Soviet Antarctic Expedition in 1958 it was named after meteorologist A.P. Dergach, a member of the Soviet Antarctic Expedition, 1959–61, who perished in a fire at Mirnyy Station on August 3, 1960. The mountain lies situated on the Pennell Coast, a portion of Antarctica lying between Cape Williams and Cape Adare.