The first reason is that, it has excellent location. Phetchabun is in the north of Thailand. It is located mostly on the mountainous and forest area,
As a result the air is fresh, making the people have a good health and happy in life. In addition, the capital have the main rivers flowing through can the boat transport convenient. What is more, this good environmental city closed to the three province : Khonkean, Phitsanulok and Lopburi. Therefore, it is convenient for people to contact and trade with neighbor.