Phia Oac (or Phja Oac as the locals call it) is located in the Non Nuoc Cao Bang Geopark system, recognized by UNESCO as a Global Geopark in April 2018. Phia Oac is 1,931m high, the second highest mountain peak in Cao Bang , considered the "roof" of the western part of the province. The diversity of terrain, geology and typical climate conditions have created unique ecosystems in this mountainous area. The diverse vegetation changes with altitude from the foot to the top of the mountain, especially the highlight of the dwarf forest ecosystem, the "moss forest" clinging thickly to the ancient tree trunks. The higher you go, the more the mountains and rivers spread out as far as the eye can see. From the top of Phia Oac, looking far away, you can see the houses of the Dao, Nung, and Tay people. In the distance, the Quang Thanh River meanders like it is embracing the land and sky of the border.
Heritage Magazine
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