Mansiri Himal is a small, high subrange of the Himalayas in north-central Nepal, about 100 km northwest of Kathmandu. The Marsyangdi River separates the Mansiri from the Annapurnas to the southwest, then an upper tributary the Dudh Khola separates Peri Himal to the northwest. On the east side, the Burhi (Budhi) Gandaki separates the Mansiri from Ganesh Himal, Serang or Sringi Himal and Kutang Himal. All these streams are tributaries to the Gandaki. The Mansiri range is also known as Manaslu Himal or the Gurkha Massif. It contains these peaks among Earth's twenty highest (with at least 500m topographic prominence): The Mansiri range is notable for its local relief. It rises 7000 m above the Marsyangdi valley floor in less than 30 km horizontal distance.