Fansipan, Mountain in Vietnam is the important Mountain.Fansipan is a mountain in Vietnam, the highest in Indochina, at 3 143 m. It is located in the Lào Cai province in Northwest Vietnam. Fansipan is dubbed "the Roof of Indochina"; it is to be approved as one of the very few ecotourist spots of Vietnam, with about 2,024 floral varieties and 327 faunal species.