L1 users: 4,790 (2000).
Gandaki zone: north Gorkha district, Tsum valley, the region drained by the Shiar Khola; Chekampar (Chokong) is prestige village.
6a (Vigorous). Language of recognized indigenous nationality: Siyar.
None known. 71%–78% intelligibility of Nubri [kte], 66% of Kyerung (Kyirong) [kgy]; 60%–66% of Lhasa Tibetan [bod]; 22%–25% of Northern Ghale [ghh], 14%–22% of Southern Ghale [ghe], 23%–27% of Kuke [ght]; 6% of Eastern Gorkha Tamang [tge], 14% of Gurung [gvr], 15% of Banspur Tamang. Divided into upper region, Yarba, and lower region, Ushug.