The park is part of Phu Phan range, the overall area is 517,850 rai ~ 829 square kilometres (320 sq mi).

[1] Its terrain is the highland of 300–600 m (984–19,68 ft) above mean sea level hemmed by high mountains and the sandstone mouth which is the water source among the nice and natural scenery such as cave, stone hill, cliff, reservoir.

The highlights are fields full of various types of wildflowers such as blackfoot daisy, Utricularia delphinioides (endemic), Osbeckia stellata, bladderwort, sundew that bloom at the same time during the rainy season, geometric ancient engraving paints inside the Phra Dan Raeng cave, Hiib Phu Pha Nang cave, Saowapa cave, Dong Noi water reservoir and Phra Wet cave as well as beautiful scenic point.

The national park offers a convenience store and eatery with campsite as well as camping equipments.

Phu Lek Fai, a hill in the area of Ban Kokkok, Dong Luang district, Mukdahan province, that used to be a topliner in 2020 from the mysterious murder of a 3-year-old local girl of Phu Thai descent named Nong Chompoo is also part of this national park.