Biafo Hisper Trek The central Karakoram, first explored and mapped in 1937 and 1939, is perhaps the wildest of all. It is an area of vast glaciers, high mountains and remote passes. Length of Biafo Glacier is 68 kilometers / 42 miles long with a total area of 625 sq. km, which starts from Korofong above Askole village. Hispar Glacier is 52 Kilometers long. It is only the Hispar pass, which separates the Hisper and Biafo Glaciers. However, most geographers consider the two glaciers as one; they call Biafo-Hispar Glacier. 

Approaching Snow Lake following a broad highway of Ice, a huge glaciated basin at 4500 meters, there could be a couple of crevasse areas where it will be necessary to rope up. Here we have the opportunity to view Biantha Brak, (7284 m), Snow Lake peak and Simkiang glacier.