The Pa Sak River ( Thai : แม่น้ำป่าสัก , RTGS : Maenam Pa Sak , IPA: [mɛ̂ːnáːm pàː sàk] , Pronunciation ) is a river in central Thailand . The river originates in the Phetchabun Mountains , Dan Sai District , Loei Province , and passes through Phetchabun Province as the backbone of the province. It then passes through the eastern part of Lopburi Province and Saraburi Province , until it joins the Lopburi River northeast of Ayutthaya Island, before it runs into the Chao Phraya River southeast of Ayutthaya near Phet Fortress. It has a length of 513 km (319 mi) and drains a watershed of 16,291 km (6,290 sq mi). The annual discharge is 2.4 km (0.58 cu mi).
12-747: The valley of the Pa Sak through the Phetchabun mountains is a dominant feature of Phetchabun Province. Water levels vary seasonally. To address drought problems in the lower Pa Sak valley, in 1994 the construction of the Pa Sak Cholasit Dam (เขื่อนป่าสักชลสิทธิ์) in Lopburi Province was built. The 4,860-meter (15,940 ft) wide and 36.5-meter (120 ft) high dam retains 0.785 km (0.188 cu mi) of water. The dam also supplies about 6.7 MW of electricity. Tributaries of
24-625: 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
36-555: Is 337 road kilometres northeast of Bangkok. As of 2021, there are wild elephants in the town. Chaiyaphum lies on the Khorat plateau at 185 metres (607 ft) elevation. The land in the immediate vicinity of the city is flat, but the Phetchabun Mountains rise to the west. Chaiyaphum has a tropical savanna climate ( Köppen climate classification Aw ). Winters are dry and warm. Temperatures rise until April, which
48-782: Is mentioned as the Phang Hoei Range in some geographical works, a name that encompasses the whole northern section of the Dong Phaya Yen mountain system, for Khao Phang Hoei is a 1,008 m high summit west of Chaiyaphum town, beyond the southern end of the Phetchabun Range proper in the northern Dong Phaya Yen. The highest elevation of the Phetchabun mountains is 1,794 m high Phu Thap Boek . Other important peaks are Khao Nam Ko Yai , Phu Kradueng , Phu Luang , Phu Ruea , and Phu Lom Lo . Geologically ,
60-570: Is part of the Chao Phraya watershed . 14°21′51″N 100°34′48″E / 14.36417°N 100.58000°E / 14.36417; 100.58000 This article related to a river in Thailand is a stub . You can help Misplaced Pages by expanding it . Phetchabun mountains The Phetchabun mountains ( Thai : ทิวเขาเพชรบูรณ์ , RTGS : Thio Khao Phetchabun , pronounced [tʰīw kʰǎw pʰét.t͡ɕʰā.būːn] ) are
72-461: Is very hot with the average daily maximum at 36.4 °C (97.5 °F). The monsoon season is from late April to October, with heavy rain and somewhat cooler temperatures during the day, although nights remain warm. Route 201 begins in Chum Phae , and runs past Chaiyaphum (without actually entering the town) to Mittraphap near Sikhio . Route 202 leads east to Yasothon , Amnat Charoen , and
84-667: The Communist Party of Thailand established their base in hidden mountain locations and fought skirmishes against the Thai Army . Several protected areas, including national parks , forest parks and wildlife reserves are located in these mountains. In 2005 these were accepted by the UNESCO as a possible future addition to the World Heritage list. Besides these protected areas, some forest parks are also located within
96-471: The Pa Sak include the Lopburi River , Khlong Muak Lek , Huai Nam Phung , Huai Pa Daeng , Khlong Lam Kong , Lam Sonthi , Khlong Wang Chomphu , Khlong Huai Na , Huai Nam Chun , Huai Nam Duk , Huai Khon Kaen , Huai Yai , Khlong Saduang Yai , Khlong Ban Bong , Khlong Tarang , and Lam Phaya Klang . The Pa Sak drains an area of 16,291 square kilometres (6,290 sq mi). The Pa Sak Basin
108-656: 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
120-425: The area of the range: Chaiyaphum Chaiyaphum ( Thai : ชัยภูมิ , pronounced [tɕʰāj.jā.pʰūːm] ; Northeastern Thai : ไซยภูมิ , pronounced [sa᷇j.ɲā.pʰu᷇ːm] ) is a town ( thesaban mueang ) in northeastern Thailand , capital of Chaiyaphum Province . As of 2015 it had a population of 58,350, and covers the full tambon Nai Mueang of Mueang Chaiyaphum District . Chaiyaphum
132-583: 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. The southern limit of the Phetchabun massif is not clearly defined, roughly beginning south of the 16th parallel north where both ranges become a group of scattered mountains of lesser height, rarely surpassing 800 m, extending southwards. The eastern mountain chain
SECTION 10
#1732772162721144-657: The mountains consist of limestone , interfused with slate and sandstone . A few igneous rocks are also found: granite , basalt and porphyry . Historically the long mountainous system of the Phetchabun- Dong Phaya Yen - Sankamphaeng formed a barrier between Isan and the Central Plain. Until recently few roads crossed the system. During the period between 1968-1982 the area around 1,143 m high Khao Kho (เขาค้อ) and Phu Hin Rong Kla became an occasional battleground. At that time insurgents of
#720279