As the map moves north toward the Thai border and east toward Vietnam, the elevation rises once more.
The is defined by its central void—the great lake—and its mountainous rims. It explains why Cambodia is a nation of water: why the Tonle Sap is the lifeblood, why Phnom Penh has historically flooded, and why the Cardamom mountains remain a last frontier for biodiversity. topographic map of cambodia
Roughly three-quarters of Cambodia’s land area consists of the , a low-lying alluvial region formed by the deposits of the Mekong River and the Tonle Sap system. On a topographic map, this area appears almost uniformly green, with contour lines widely spaced or absent, indicating extremely low relief. As the map moves north toward the Thai