The Pamir-Alay stretches between the valleys of the rivers Syr Darya (Fergana Valley) to its north and Vakhsh to its south.[1] Its highest summit is Pik Skalisty (Russian: пик Скалистый, "rocky peak"), 5621 m, in the Turkestan Range.[6] The Pamir-Alay is about 900 km long in west–east direction, and up to 150 km wide in the Western part.[3]