VietnamSurprise – Pu Luong is located in Ba Thuoc and Quan Hoa districts, northwestern of Thanh Hoa province. The proposed nature reserve lies along two parallel mountain ridges, which run from northwest to southeast, and are bisected by a central valley.

The three major vegetation types at the Vo Doi Nature Reserve are ‘semi-natural’ (originally planted but no longer tended) Melaleuca forest, Melaleuca plantation and seasonally inundated grassland. Semi-natural Melaleuca forest covers a large area in the west of the site. The tree flora is dominated by Melaleuca cajuputi, although other tree species are also present, including Ilex cymosa and Alstonia spathulata. Melaleuca plantations of varying ages are distributed in the east of the nature reserve.