Poti River References Poti River river, Brazil Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Piauí…confluence of the Parnaíba and Poti rivers. The state’s small Atlantic coastline is only about 40 miles (64 km) long. Read More…confluence of the Parnaíba and Poti rivers. The state’s small Atlantic coastline is only about 40 miles (64 km) long. Read More