Rma byang Hrong-bo tshang gi lo rgyus nor bu dwangs byed kyi mgrin rgyan

History (from the 18th century to present) of the Hrong-bo family (tshang) and related Tibetan and Mongolian tribes living north of the Yellow River (Tib. Rma-chu; Ch. Huang He) in the region known as Amdo (Tib. A-mdo), particularly the areas of Reb-gong (Huangnan Prefecture) and what is now Hainan Prefecture, Qinghai Province.