1.Previous
3.Next

forms the boundary with Maranhão throughout its entire length; the state lies almost entirely within the basin of the Parnaíba and its tributaries. Part of the state on the Atlantic coast and along the lower Parnaíba is low, swampy, and historically malarial. South of this the country rises gradually to a plateau with open campos. This plateau region is watered by numerous tributaries of the Parnaíba, chief of which are, from south to north: the Poti, which has its source in the state of Ceará; the Longa;

1.Previous
3.Next