Central Highlands is a plateau bordering the lower part of Laos and northeastern Cambodia. Kon Tum Province shares a border with both Laos and Cambodia but Gia Lai Province and Đắk Lắk Province only share borders with Cambodia. Lâm Đồng Province is landlocked and has no international border.
Actually, Central Highlands is not situated on a unique plateau, instead, it lies on a series of contiguous plateaus, namely Kon Tum Plateau at the height of 500 m, Kon Plông Plateau, Kon Hà Nừng Plateau, Pleiku Plateau with the height of around 800m, Mdrak Plateau of approximately 500 m, Đắk Lắk Plateau of around 800m, Mơ Nông Plateau with the height of about 800–1000 m, Lâm Viên Plateau of approximately 1500 m and Di Linh Plateau of about 900–1000 m. All of these plateaux are surrounded by high mountain ranges and mounts (South Annamite Range).
Tây Nguyên can be divided into 3 subregions according to its deviation in topography and climate, namely: North Tây Nguyên (Bắc Tây Nguyên) (inclusive of Kon Tum and Gia Lai provinces), Middle Tây Nguyên (Trung Tây Nguyên) (covering provinces of Đắk Lắk and Đắk Nông), South Tây Nguyên (Nam Tây Nguyên) (Lâm Đồng). Trung Tây Nguyên has a lower altitude and therefore has a higher temperature than the other two subregions.