Phu Phra Bat Historical Park. Phu Phra Bat Historical Park. Located on the hillside Phu Phan. Covers an area of about 3,430 rai in Ban Muang Phan tally away from the city about 67 km distance along the No. 2 line, Udon Thani - Nong Khai The main area, 13 miles, then turn left onto Highway 2021 toward Ban Phu. Distance of 42 miles, turn right and go straight approximately 500 meters along the 2348 number, approximately 12 kilometers turn right and go about 2 miles a way. Phu Phra Bat Historical Park is the location of the place which represents the civilization of mankind. And changes in terrain which is mostly sandstone structure was refined from natural erosion processes cause a large rock at the same time different shapes appear as evidence about people's lives in the past, many points of interest such as Buddha asiatica. Located at the intersection of the left just before the park office be established between 2463-2477 words "Centella" is the name of a type of veget...