Shaksgam River, also known as the Mutzgam River, lies to the north of the
Range. It originates as two channels from the north-western flank of the Siachen glacier, and joins to form the main river, which flows towards north-western direction. This river drains the extreme northern part of the Ladakh
The valley of the Shaksgam River is bordered by the Karakoram Range on the left and Aghil range on the right, and it forms the boundary between Ladakh and Tibet. The bottom of this valley is littered with vast glacial deposits.
Shaksgam River takes a U-turn and cuts a deep gorge across the Aghil range before leaving Indian Territory, and joins the Yarkan River in Tibet. It remains frozen for long periods in winter and during late summer, the water discharge is more.