Many of the fossil species have been found there years ago, 400-600 million years. Dong van Highlands is a mountainous region had different age rocks from Devonian to Pecmi, surrounded by the mountains of the Earth. Here comes the rain from April to September, but water shortages in the dry season (from October to April).
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![](//viimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)