Xingu-Tocantins-Araguaia moist forests Xingu-Tocantins-Araguaia moist forests The Xingu-Tocantins-Araguaia moist forests (NT0180) is an ecoregion in the eastern Amazon basin. It is part of the Amazon biome. The ecoregion is one of the most severely degraded of the Amazon region, suffering from large-scale deforestation and selective extraction of timber, particularly along the Trans-Amazonian Highway and in the higher and more populated southern portions. The Xingu-Tocantins-Araguaia moist forests ecoregion has an area of . It lies to the south of the Amazon River in eastern Brazil. The Xingu River defines the western boundary and the Tocantins River defines the eastern boundary. To the south the
American River just south of where U.S. Route 50 makes a sharp curve northward to descend into Tahoe Valley. The South Fork has multi-use recreational areas, including the Rubicon Trail for motorized adventuring and whitewater rafting venues. The South Fork also features the historic town of Coloma, where the California Gold Rush began in 1848. Trout fishing and recreational gold panning are popular activities on the South Fork. The Silver Fork American River is a tributary of the South Fork American River, that has its origin at Silver Fork Lake The American River watershed crosses multiple climate zones due to the large