 Kigali lies in a region of rolling hills, with a series of valleys and ridges joined by steep slopes.It is situated between the two mountains of Mount Kigali and Mount Jali, both of which have elevations of more than above sea level, while the lowest areas of the city have an altitude of .Geologically, Kigali is in a granitic and metasedimentary region, with lateritic soils on the hills and alluvial soils in the valleys.