International symposium on vulcanospeleology convenes in Dak Nong Sci-Tech

International symposium on vulcanospeleology convenes in Dak Nong

The authorities of the Central Highlands province of Dak Nong and the Vietnam Institute of Geoscience and Mineral Resources on November 22 co-organised the 20th International Symposium on Vulcanospeleology and another seminar on 15 years of geo-park development in Vietnam.