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
South Fork American River Creek, and Silver Fork American River. Most of the watershed consists of high, forested mountains and steep-sided valleys that receive up to of annual precipitation, except for the westernmost section which consists of drier foothill country. The river also contributes about a third of the total outflow of the American River system. According to a U.S. Geological Survey stream gage at Lotus, about above Folsom Lake, the average discharge was from 1951 to 1995. The highest recorded flow was on January 1, 1997 (see ), and the lowest monthly mean was in July 1977. Rafting and Kayaking The South Fork