darfur covers an area of about 493 180 km² (196,555 miles²)—just over two-thirds the size of france and more than half the size of kenya. it is largely an arid plateau with the "marrah mountains" (jebel marra), a range of volcanic peaks rising up to 3000 m (10,100 ft), in the center of the region. the region's main towns are al fashir, nyala, and geneina.