North face of the so called Batura wall with Passu (left half) and Batura (right half) massifs. Passu Sar is the summit on the left of the col in the center. On the right there are Muchu Chhish and Batura I-III
Passu Sar (Urdu: پسو سر; or Passu Sar, Passu I) is a mountain peak in the Batura Muztagh, a sub-range of the Karakoram mountain range, in the Hunza District of Gilgit-Baltistan, Pakistan. It is the high point of the Passu massif, which also includes Passu Diar (or "Passu East", "Pasu II"). The peak lies on the main ridge of the Batura Muztagh, about 7 km (4 mi) east of Batura Sar.
The date of the first successful ascent of Passu Sar is disputed. It has been reported as first climbed on 7 August 1994 by the German team of Max Wallner, Dirk Naumann, Ralf Lehmann, and Volker Wurnig.[2][3] Another report claims it was climbed in 1978 by a Japanese-Pakistani team.[4]