highest peak (25,230 ft 【7,690 m】) in the Hindu Kush mountain system, lying 155 mi (249 km) north of Peshāwar, Pak., in the North-West Frontier Province near Afghanistan. The Upper Tirich Glacier basin is formed by Tirich Mir East, Tirich Mir (the main summit), peaks to the west, and another group to the north; these peaks form a horseshoe-like semicircle. High precipices rise over the Lower Tirich Glacier and are considered avalanche threats by climbers. The first recorded ascent of Tirich Mir was made by Norwegians in July 1950.