Exploring the Dong Van Karst Plateau During the Northern Frontier's Dry Season
Discover the Dong Van Karst Plateau UNESCO Global Geopark, its breathtaking mountain passes, and the rich cultural heritage of 19 highland ethnic groups.
Vietnam's First UNESCO Global Geopark
The Dong Van Karst Plateau, also referred to as the Dong Van highland, is nestled in the northernmost mountain territory of Vietnam. It spans an area of 2,265.7 km² with an average elevation between 1,200 and 1,400 meters above sea level. On October 3, 2010, the plateau was officially designated as a Global Geopark by the UNESCO Global Geoparks Network (GGN) Advisory Board. At the time of its recognition, it was the only geopark in Vietnam and only the second in Southeast Asia.
Geologically, the karst plateau consists of limestone formations spanning from the Devonian to the Permian periods, framed by earthen mountains. Researchers have discovered fossil specimens of species dating back 700 to 900 million years here. Situated near the Tropic of Cancer, its rugged landscape is heavily dissected by deep valleys, winding streams, and sheer vertical cliffs.
Geographical Extent and Topographical Features
The Dong Van Karst Plateau stretches across numerous communes and townships, including Quan Ba, Can Ty, Yen Minh, Pho Bang, Sa Phin, Lung Phin, Mau Due, Du Gia, Lung Cu, Dong Van, and Meo Vac. The terrain is exceptionally rugged, marked by towering rocky mountains with steep inclines, deeply incised valleys, and fragmented stream networks.
The defining feature of the landscape is its sea of jagged, undulating 'cat-ear' limestone pinnacles and dramatic escarpments. The area displays a dynamic contrast between the towering rock peaks in the north, steep mountainsides, high mountain passes, and narrow stream beds below.
Key Landmarks and Geographic Extremities
The plateau covers multiple administrative divisions, such as Sa Phin and Lung Cu communes in Dong Van District, and Son Vi Commune in Meo Vac District. Among these, Lung Cu Commune marks the northernmost tip of Ha Giang Province.
Extending from the north toward the east is Meo Vac District, home to Son Vi Commune, where Lung Chin village marks Ha Giang's easternmost point. All of these geographical landmarks fall within the protected bounds of the geopark.
Ethnic Communities of the Karst Plateau
The Dong Van Karst Plateau is home to roughly 360,000 residents from 19 distinct ethnic minority groups in Vietnam. In addition to larger groups such as the Hmong, Dao, Tay, and Nung, this region serves as the sole sanctuary for several small ethnic communities, including the La Chi, Pu Peo, Pa Then, and Lo Lo.
The nomination dossier for the Dong Van Karst Plateau was submitted to UNESCO in April 2010, paving the way for it to become Vietnam's very first global geopark.
Climate and Geographic Location
Ha Giang City, the administrative hub of the province, sits approximately 320 km from central Hanoi. The regional climate blends tropical monsoon traits with high-altitude subtropical conditions, characterized by long, chilly winters—with the coldest period falling between December and January.
The rainy season lasts from May to late September, followed by a dry season extending from October through April. During winter, temperatures at weather stations frequently drop below 10°C (50°F), with frost and occasional snow appearing across the highest limestone summits.