Xingu Indigenous Park notable. He sought a city which Europeans had heard rumor of since their early 16th-century colonial contact, and he disappeared in the jungle in 1925. David Grann wrote an article about his exploration, followed by an expanded book, "The Lost City of Z" (2009) on the same subject and with the same title. It documents those early explorations. It also explores archeological evidence found since the late 20th century of large-scale indigenous civilizations that pre-date Spanish and Portuguese contacts and colonization. Xingu Indigenous Park The Xingu Indigenous Park (, pronounced ) is an indigenous territory of Brazil, first created in
Xingu River extracting from the river most of what they need for food and water. The Brazilian government is building the Belo Monte Dam, which will be the world's third-largest hydroelectric dam, on the Lower Xingu. Construction of this dam is under legal challenge by environment and indigenous groups, who assert the dam would have negative environmental and social impacts along with reducing the flow by up to 80% along a stretch known as the Volta Grande ("Big Bend"). The river flow in this stretch is highly complex and includes major sections of rapids. More than 450 fish species have been documented