Karakoram & Pamir

The creation of the Karakoram fault started with the closing of the ancient Tethys ocean seaway which once separated the two modern continents of Asia and India. The Karakoram fault itself does not trace a plate boundary, except for where it possibly ends in the Indus-Yarlung Suture Zone.The original thrusting occurred by linking existing thrust faults in what is now the Pamir Mountains starting between 17 and 20 million years ago.

The Karakoram fault is an oblique-slip fault system in the Himalayan region across India and Asia. The slip along the fault accommodates radial expansion of the Himalayan arc, northward indentation of the Pamir Mountains, and eastward lateral extrusion of the Tibetan plateau

The Pamir Mountains are a mountain range between Central Asia and Pakistan. It is located at a junction with other notable mountains, namely the Tian Shan, Karakoram, Kunlun, Hindu Kush and the Himalaya mountain ranges. They are among the world's highest mountains.

Much of the Pamir Mountains lie in the Gorno-Badakhshan Province of Tajikistan. To the south, they border the Hindu Kush mountains along Afghanistan's Wakhan Corridor in Badakhshan Province, Chitral and Gilgit-Baltistan regions of Pakistan. To the north, they join the Tian Shan mountains along the Alay Valley of Kyrgyzstan. To the east, they extend to the range that includes China's Kongur Tagh, in the "Eastern Pamirs", separated by the Yarkand valley from the Kunlun Mountains.

Since Victorian times, they have been known as the "Roof of the World", presumably a translation from Persian.

A pamir is a flat plateau or U-shaped valley surrounded by mountains. It forms when a glacier or ice field melts leaving a rocky plain. A pamir lasts until erosion forms soil and cuts down normal valleys. This type of terrain is found in the east and north of the Wakhan -  a rugged, mountainous part of the Pamir, Hindu Kush and Karakoram regions of Afghanistan., and the east and south of Gorno-Badakhshan, as opposed to the valleys and gorges of the west. Pamirs are used for summer pasture.

The Karakoram is a mountain range in Kashmir region spanning the borders of Pakistan, China, and India, with the northwest extremity of the range extending to Afghanistan and Tajikistan. Most of the Karakoram mountain range falls under the jurisdiction of Gilgit-Baltistan, which is controlled by Pakistan. Its highest peak (and world's second-highest), K2, is located in Gilgit-Baltistan. It begins in the Wakhan Corridor (Afghanistan) in the west, encompasses the majority of Gilgit-Baltistan, and extends into Ladakh (controlled by India) and Aksai Chin (controlled by China). It is the second-highest mountain range in the world and part of the complex of ranges including the Pamir Mountains, the Hindu Kush and the Himalayan Mountains.

The Karakoram is bounded on the east by the Aksai Chin plateau, on the northeast by the edge of the Tibetan Plateau and on the north by the river valleys of the Yarkand and Karakash rivers beyond which lie the Kunlun Mountains. At the northwest corner are the Pamir Mountains. The southern boundary of the Karakoram is formed, west to east, by the Gilgit, Indus and Shyok rivers, which separate the range from the northwestern end of the Himalaya range proper. These rivers flow northwest before making an abrupt turn southwestward towards the plains of Pakistan. Roughly in the middle of the Karakoram range is the Karakoram Pass, which was part of a historic trade route between Ladakh and Yarkand that is now inactive.