Sudan copper, gold, granite, gypsum, iron, kaolin, lead, manganese, mica, natural gas, nickel, petroleum, silver, tin, uranium and zinc. The amount of rainfall increases towards the south. The central and the northern part have extremely dry desert areas such as the Nubian Desert to the northeast and the Bayuda Desert to the east; in the south there are swamps and rainforest. Sudan's rainy season lasts for about three months (July to September) in the north, and up to six months (June to November) in the south. The dry regions are plagued by sandstorms, known as haboob, which can completely block out
Sonoran Desert Altar, with the "Reserva de la Biosfera el Pinacate y Gran Desierto de Altar" ('Pinacate National Park' in Mexico), extending of desert and mountainous regions. The Pinacate National Park includes the only active Erg dune region in North America. The nearest city to the "Reserva de la Biosfera el Pinacate y Gran Desierto de Altar" is Puerto Peñasco (a.k.a. 'Rocky Point') in the state of Sonora, Mexico. Sonoran Desert sub-regions include: The Sonoran Desert includes 60 mammal species, 350 bird species, 20 amphibian species, over 100 reptile species, 30 native fish species, over 1000 native bee species, and more than