For the northern part of Thailand Terrain is mountain area between mountains, which switches the people lived together as a group could break ayangkrachai called the Group Lanna culture.
For northern Thailand The terrain is mountainous plateau between the mountains. Where people live as well as distribution share group called the Lanna culture.
For the northern Thailand. Geography is a mountain area switch plains between the mountains. Which people live as dispersed share group. Also called the Lanna culture.