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. 2015 Jun 1;10(6):e0127067. doi: 10.1371/journal.pone.0127067

Fig 1. Study area.

Fig 1

The big river entering from the left is the Urubu River that meets Lake Canaçari in front of Silves Island and flows into the Amazon River. The circles represent the communities with complex pre-Columbian occupational histories and triangles represent communities with simple pre-Columbian occupational histories, all of them along the Urubu River, in the State of Amazonas, Brazil, except for the Irmandade Terra Preta, which is near the mouth of the Itapani River, the last major tributary of the Urubu River.