 The city is now composed of a relatively contiguous urban area, centred on Belo Horizonte, which extends out into municipalities such as Contagem, Betim, Nova Lima, Raposos, Ribeirão das Neves, Ibirité, Santa Luzia and Sabará, among others.The municipality bounded to the north by Vespasiano, to the north east by Santa Luzia, by Sabará to the east, by Nova Lima to the southeast, Brumadinho to the south and Ribeirão das Neves, Contagem and Ibirité to the west.Belo Horizonte lies on a region of contact between different geological series of the Proterozoic.