Khalong Tibetan (or Khalung; also known as Rdo or Rdoskad^[1]) is a Tibetic language of Sichuan, China, once considered a dialect of Khams. It is spoken in Zamtang County of Ngawa Prefecture. Phonological and grammatical details reflect a Showu (Gyarong) substrate.^[2]

It is spoken at Khalung Village (卡龙村) of Bugrje Township (吾依乡), and Rkamda’ (岗木达), Mesmda’ (明达), and Bragmgo (章光) villages of Rkamda’ Township (岗木达乡) along the lower Rdokhog River (杜科河) of central Dzamthang County (壤塘县) in Rngaba Prefecture (阿坝州). The closely related Gserpa language is spoken just to the west of the Khalong-speaking area.^[1]

• T-S. Sun Jackson, 2002. "Perfective stem renovation in Khalong Tibetan", Communication pre'sente'e au 8th Himalayan Symposium, Universite' de Berne, 19–22 September.

v t e Sino-Tibetan branches
Western Himalayas (Himachal, Uttarakhand, Nepal, Sikkim)	West Himalayish Tamangic Newaric Newar Baram–Thangmi Kiranti Dhimalish Dhimal Toto Lhokpu Lepcha Greater Magaric Magaric Magar Kham Chepangic Chepang Bhujel Raji–Raute Dura–Tandrange
Eastern Himalayas (Tibet, Bhutan, Arunachal)	Bodish Tibetic East Bodish Tshangla Basum Nam? Gongduk ʼOle Tani Chamdo
Myanmar and Indo-Burmese border	Karbi Kuki-Chin Mruic Mru Hkongso Pyu Taman "Naga" Ao Angami–Pochuri Meitei Tangkhulic Zeme Sal Boro–Garo Konyak Jingpho–Luish
East and Southeast Asia	Sinitic Bai Tujia Nungish Karenic Gong Kathu Cai–Long Caijia Longjia Luren Burmo-Qiangic Qiangic Gyalrongic Ersuic Naic Lolo-Burmese Mondzish Burmish Loloish
Dubious (possible isolates) (Arunachal)	Hrusish Hruso Mijiic Kho-Bwa Puroik Miju–Meyor Songlin Greater Siangic Siangic Koro Milang Idu–Taraon
Proposed groupings	Central Tibeto-Burman Kuki-Chin–Naga Macro-Bai Mahakiranti Rung Tibeto-Burman Tibeto-Kanauri
Proto-languages	Proto-Sino-Tibetan Proto-Tibeto-Burman Proto-Loloish Proto-Karenic Proto-Min Proto-Hakka
Italics indicates single languages that are also considered to be separate branches.