There are three main features in Thailand’s terrain: high mountains, a central plain and an upland plateau. Much of northern Thailand is covered in mountains which extend along the Myanmar boder to the Malay Peninsula. The central plain is a lowland are drained by the Chao Phraya River and its tributaries. This is the country’s principal water systems, which feed into the delta at the head of the Bay of Bangkok. The northeastern part of the country consists of the Khorat Plateau. This region is full of rolling low hills and shallow lakes, which drains into the Mekong through the Mun River. The Mekong system empties in the South China Sea.
The Chao Phraya and Mekong river systems sustain Thailand’s agricultural economy by supporting rice cultivation and providing waterways for transportation. Peninsular Thailand has very different natural features and is characterized by long coastlines, offshore islands and mangrove forests.
Total: 514, 000 sq. km
Land: 511,770 sq. km
Water: 2,230 sq. km
Thailand uses a unit of land area measurement called the rai, which is 1,600 sq. m
Lowest point: Gulf of Thailand 0 m
Highest point: Doi Inthanon 2,565 m