Steppe zone, including the area between the mountains. On the central plateau and the Gulf of Thailand, with the area. Since the East of Kanchanaburi To the provinces Thailand is divided into two sub-fields.
• Administrative plain steps: the plains to the east of Kanchanaburi and Ratchaburi is caused by the accumulation plains. The influence of river sediment and the Tha Chin River valley in this area. Be higher in the northeast. Which interacts with the mountains and gradually slopes down to the east and southeast. Take the Central Plains and the Gulf of Thailand is like a ladder.
• Steppe zone the sea: in the northern coastal province of Phetchaburi province down. Prachuap Khiri Khan These plains A long narrow plateau of the action. Of the wave, which is Coastal plains swell
into hills and valleys, the western landscape. Is similar to the northern high mountains interspersed with narrow valleys into the mountain complex. And the part of the sea in Phetchaburi and Prachuap Khiri Khan. Mountain region is the continuation of the mountain range in the north are mountains and mountains Hua Thanon Thongchai. Between the mountains A switch on the Mekong River River basin are caused by the collapse of the Earth's crust, called a graben basins and river valleys. A lift up the horn post becomes hilly and mountainous terrain. Plains of major rivers, including the Mekong River Kwai. Lowlands, river valleys and plains.
Petchaburi
on the west along the southern elevation. It found that the majority, 58 percent, 23 percent is a high mountain plateau, and 19 percent is flat foot. The topography of the western region is similar to the high mountains, narrow valleys interspersed. West to the mountains The high linear Extending due north to the south. To the east is the Mekong River. And the coastal plains
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