 Situated at the lowest part of the city, in the valley of the eponymous Nyabugogo River, Nyabugogo is home to Kigali's principal bus and share taxi station, with vehicles departing for numerous domestic and international destinations.The remainder of Kigali's suburbs lie to the east of the CBD, with an urban sprawl spanning the many hills and ridges.Kiyovu is the closest, on the eastern slopes of Nyarugenge Hill.