The topography of the island largely determines the division of Madagascar regions. The East Coast and West Coast of the island of Madagascar constitute most of the plain land of the nation. The Central Highlands are comparatively higher than the coastal regions. The Southwest is another distinct region of Madagascar.
The variation in topography also causes differences in the natural and climatic condition of the regions at Madagascar. The native ethnic groups living in the different regions of Madagascar are quite varied from one another. Each ethnic group has a rich history and culture of their own. The indigenous cultures of the natives are concentrated in each of the four Madagascar regions.