It is unclear which is the highest unclimbed non-prohibited mountain. While some recognize only peaks with of topographical prominence as individual summits, the International Climbing and Mountaineering Federation uses a cutoff for determining individual summits. Based on the International Climbing and Mountaineering Federation's criteria, Muchu Chhish ( with a prominence of ) in Pakistan is currently the world's tallest that has not been climbed even though it is legal to do so. Other unclimbed summits include one on the massif known as Kabru ( prominence c. ), Labuche Kang III/East () with prominence of and Karjiang ( with a prominence of ).