... and Planning, Project of Investment in Hoang Lien National Park, Lao Cai Province, Hanoi, 2003 (in Vietnamese) [2] Nguyen Thi Hai, Nguyen An Thinh, Ecotourism Territorial Organization for socio-economic ... tourism units [2] Forces for TOET in Hoang Lien National Park HLNP is situated in the northwest of Sapa District, at the triangle of boundaries of three provinces: Lao Cai, Hoa Binh, and Son La ... territory Spatial organization for ecotourism territory is the key to the conservation in National Parks, setting seeds for tourist management to ensure sustainable development Territory for ecotourism...