The Saltoro Mountains are Lesser Karakorams on the southern and western side of the large Karakoram-glaciers (Siachen, Baltoro, Biafo and Hispar Glacier from east to west) while the main ridge of the Karakorams lies north resp. east of these glaciers. The subranges of the main ridges are called Muztagh whereas the mountain groups of the Lesser Karakorams are denominated as Mountains, Ranges or Groups.