Itanhém River References Itanhém 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: Maxakali…near the headwaters of the Itanhém River. Over the past century the Maxakali have moved progressively eastward from their original home along the upper Mucuri River. The Maxakali numbered about 400 in the late 20th century. Read More…near the headwaters of the Itanhém River. Over the past century the Maxakali have moved progressively eastward from their original home along the upper Mucuri River. The Maxakali numbered about 400 in the late 20th century. Read More