To date, scientists and Dak Nong province have identified a system of nearly 50 caves with a total length of more than 10,000m. In the photo is Nam Kar volcano (located in Quang Phu commune, Krong No district, Dak Nong province) with an altitude of 660m above sea level, a diameter of 220m, a small mouth, and a depth of about 20m (Photo: Thanh Hai).
Nam Blang volcano is located in Buon Choah commune (Krong No district, Dak Nong province). In the local language, Nam means mountain, and Blang is the name of the kapok flower, a symbol of the gods and associated with the epic and beliefs of the ethnic group with the longest history of residence in this land (Photo: Dang Duong).
According to scientists , more than 140 million years ago, tectonic movements of the earth's crust created a unique volcanic cave system, considered the longest, most massive and most unique in Southeast Asia. In the photo, the expedition team of the Global Geoparks Council is entering Cave C7 - the longest cave in Southeast Asia (Photo: Nam Anh).
International experts have just discovered a new branch of cave C7 with an officially determined length of 199m (Photo: Nam Anh).
The cave is a typical primitive type, formed by the gas escape of lava flows/tubes (Photo: Nam Anh).
Currently, cave exploration and research is only focused on dry caves with exposed mouths on the ground surface, of which caves C7, C6 and C6-1 have the most scientific value (Photo: Nam Anh).
The cave ceiling is covered with lava of varying thicknesses. Although the ceiling layer is very thick in some parts, the tremors caused by volcanic activity and the movement of hot, liquid lava have affected the structure of the lava tube's hard shell (Photo: Nam Anh).
For the first time in Southeast Asia, scientists have discovered prehistoric archaeological remains in a volcanic cave. This archaeological site is a type of residential, workshop and burial site with unique and rare scientific value in the world (Photo: Dang Duong).
Currently, researchers are continuing to complete the 3D graphic image construction for the C7 cave system (Photo: Nam Anh).
With the discovery of a new cave length, C7 Cave has been recognized by international scientists as the longest volcanic cave in Southeast Asia. In the photo is an additional map of C7 Cave. (Photo: Dak Nong UNESCO Geopark Management Board).
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