About Siachen Glacier: Siachen is one of the longest glaciers found anywhere outside the Arctic and Antarctica. It sits so high that the air has very little oxygen. Meltwater from Siachen feeds rivers that millions of people depend on. Soldiers have been stationed on Siachen at extreme altitude since the 1980s

Location: The Karakoram range, in the Himalayas · Length: About 76 km (47 mi) long · Type: A long mountain valley glacier · Countries: In a disputed area between India and Pakistan · Elevation: Sits above 5,000 m (16,400 ft) high in the mountains · Feeds: The Nubra River, which flows into the Indus · Notable Feature: Known as the world's highest battleground · Climate: Bitterly cold, with fierce winds and heavy snowfall · World Rank: One of the longest glaciers outside the polar regions