Pa Hin Ngam is a National Park in Chaiyaphum province, Thailand. The name Hin Ngam means beautiful stone, where Pa means forest.
The park is located at the boundary of the Phetchabun mountain range with the Khorat Plateau. The steep cliff at the 846 m high Sut Phan Din viewpoint allows a great view into a valley of the Sonthi River and the Sap Langka Wildlife Sanctuary. The name Sut Phan Din means end of land, reflecting the steepness of the cliff. This cliff also marks the watershed between the Chao Phraya and the Mekong rivers.
Near the viewpoint is one of the fields of the Siam Tulip. The dipterocarp forests bloom with the purple flowers at the beginning of the raining season in July.
The park got its name from the strange rock formations in the Hin Ngam Rock Ground, located at the western end of the park. Erosion has carved several large rocks into striking and unusual shapes.
One of the most famous wild fields of Siam Tulips is in the Pa Hin Ngam National Park in the Chaiyaphum province of Thailand.
Siam Tulips festival will begin in June - July and August every year
