The Rathong Glacier is an important glacier situated in Sikkim. The source of Rangeet River flows from the Rathong Glacier.[1] Rathong glacier sits at the bases of the Rathong Peak (6,678 m (21,909 ft)), Kabru north/south and Dome. http://wikimapia.org/1103736/Rathong-Peak-6-678m-21-909ft