The Bartang is a river of Central Asia, and is a tributary to the Panj which itself is a tributary to the Amu Darya. In its upper reaches, it is also known as the Murghab and Aksu; it flows through the Wakhan in Afghanistan, then through the Rushon District of the Gorno-Badakhshan autonomous region, Tajikistan. The river is 528 kilometres (328 mi) long and has a basin area of 24,700 square kilometres (9,500 sq mi).

The Little Pamir is a broad U-shaped grassy valley or pamir in the eastern part of the Wakhan in north-eastern Afghanistan. The valley is 100 km long and 10 km wide, and is bounded to the north by the Nicholas Range, a subrange of the Pamir Mountains.