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
Silver Creek (American River) Silver Creek (American River) Silver Creek is a major tributary of the South Fork American River in the Sierra Nevada mountain range. It begins below the dam of Junction Reservoir where its two main tributaries meet — South Fork Silver Creek and Big Silver Creek. There are three reservoirs, all part of the Upper American River Project, along Silver Creek and its tributaries before the main stem empties into the South Fork American River just north of Pollock Pines. Ice House Reservoir lies along South Fork Silver Creek four miles northwest of Kyburz. Nine miles northwest of Kyburz is Union