In 1994, Mortimer summited Chongtar in China, which was then the world's highest unclimbed peak. However, the massif remained unclimbed until 1960. She made the first ascent of Gasherbrum III, the highest unclimbed mountain in the world. Although the unclimbed Matterhorn had a mixed reputation among British mountaineers, it fascinated Whymper. Due to its religious significance, Kailash remains an unclimbed mountain. This is the comprehensive list of all unclimbed mountains of Nepal. Together with Simpson, Yates climbed Siula Grande in 1985, via the hitherto unclimbed west face. The objective was to climb with Carlo Mauri the unclimbed Cerro Torre (). At the time, Kurumdy was one of the highest unclimbed mountains on Earth. In 1965, Mount Kennedy was North America's highest unclimbed peak. Mount Orjen gives a lot opportunities for climbing unclimbed routes with various difficulties. Until then it was the world's second highest unclimbed mountain after Gangkhar Puensum. It is unclear which is the highest unclimbed non-prohibited mountain. Their main objective, the unclimbed North Face of Koh-i-Mondi (6,234m), was climbed relatively uneventfully. Many of them are unclimbed; many are unnamed.