Phetchabun Range

Phetchabun Mountains
View over the Phu Hin Rong Kla area
Highest point
Peak	Phu Thap Buek
Elevation	1,794 m (5,886 ft)
Dimensions
Length	190 km (120 mi) N/S
Width	110 km (68 mi) E/W
Geography
Physical map of Isan
Country	Thailand
States/Provinces	Phetchabun Province, Phitsanulok Province, Loei Province and Chaiyaphum Province
Range coordinates	16°26′N 101°9.1′E / 16.433°N 101.1517°E / 16.433; 101.1517Coordinates: 16°26′N 101°9.1′E / 16.433°N 101.1517°E / 16.433; 101.1517
Parent range	Luang Prabang Mountains (western section)
Borders on	Luang Prabang Range and Dong Phaya Yen Range
Geology
Type of rock	Sandstone and granite

The Phetchabun mountains (Thai: ทิวเขาเพชรบูรณ์, rtgs: Thio Khao Phetchabun, pronounced [tʰīw kʰǎw pʰét.t͡ɕʰā.būːn]) are a mountain massif in Phetchabun, Phitsanulok, Loei and Chaiyaphum Provinces, Thailand. It consists of two parallel mountain chains, with the valley of the Pa Sak River in the middle.

The strange rock formations of Phu Hin Rong Kla and fields where the Siam tulip flower (Curcuma alismatifolia), known as dok krachiao (ดอกกระเจียว) in Thai, grows wild are some of the characteristics of the Phetchabun Mountains.

The mountain system as a whole is named after the city of Phetchabun which lies within the mountainous area. To the south and southeast lie the Dong Phaya Yen Mountains. Both sections of the Phetchabun massif are parallel and of a similar length, extending in a roughly north-south direction. The western range is a prolongation of the southern end of the Luang Prabang Range. The eastern range separates the broad Chao Phraya river basin of central Thailand from the Khorat Plateau of Isan. The northward-flowing Loei River, a tributary of the Mekong, has its sources in the eastern range.