The oldest volcano in the country, Thailand is in the province now has about 395-438 million years ago, which is older than that found in the crater of buriram province, and at the age of only 20-30 million a year.
The oldest volcanoes in the Loei province by between approximately 395-435 million years ago, older crater found in Buriram province and aged only 20 -30 million years only.
The volcano"s oldest in Loei by be about 395-435 million years ago. Which is more than the crater found in the Sukhothai and Buri ram, who was only 20 - 30 million ปีเท่านั้นเอง.