Phu Kao - Phu Phan Kham National Park, an area in upper northeastern plateau, locates in the lower part of Udon Thani Province and lupper part of Khon Kaen Province. The main geology of this area is mountains of sandstone, has sandstone stratum on the top layer of soil, has hard soil or sandy hard soil beneath, and has laterite and sandy soil scattering all over the area. There are plants, animals, and naturally beautiful scenery. The area consists of deciduous forest and is about 322 squares kilometers.
The appearance of Phu Kao looks like frying pan which has great plain in the center. It can be assumed that this area is the remains of a volcano extinguished millions of years ago, or layers of rock in this area bending up to being mountain ridges. Phu Kao Mountain Range is two peripheral lines of mountain; the outer line consists of high mountains; the inner line consists of lower mountains which its hillside is not much slope. Most of the area alternates between high and low, and some are plains.
Rekha Khanit and Muem Caves
Beautiful Scenery of Ubonrat Dam and her Islands
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