North Darfur occupies more than half of the territory of the Darfur region, and includes part of the Marrah Mountains (Jebel Marra). The northern part is entirely desert. To the south there is slightly more rainfall with the eastern side being plains with low sandy hills, while the volcanic Marrah Mountains occupy most of the western side of the south. In the southern portion the most important crops are millet, maize and peanuts.