Passu Sar, situated at the extreme west of the Batura Muztagh in Gojal beyond Passu village, is about 100 km before the China border and 150 km from Gilgit. It is clearly visible from the Karakoram Highway. It lies between Batura glacier, the 6th longest glacier of the world, Passu glacier, Ghulkin glacier and the Kamaris glacier. It is a technical climb to an ice dome on the top of Batura Muztagh through ice, hidden crevasses, and ice shoulders.
It was first climbed in 1978 by joint Pakistan Japanese expedition and one of their members, Mr. Toshio Takahashi lost his life by felling into a crevasse on the lower glacier at 5800 m. Passu Sar, a long but gently angled climb from the Passu glacier to the east has so far had a number of ascents. The surrounding peaks are Batura-I 7885 m, Shishper 7611 m and Kampir Dyor Peak 7168 m.