Amazon river dolphin widespread river dolphins. They are present in six countries in South America: Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela, in an area covering about . The boundaries are set by waterfalls, such as the Xingu and Tapajós rivers in Brazil, as well as very shallow water. A series of rapids and waterfalls in the Madeira River have isolated one population, recognized as the subspecies "I. g. boliviensis", in the southern part of the Amazon basin in Bolivia. They are also distributed in the basin of the Orinoco River, except the Caroni River and the upper Caura River in Venezuela. The
South Fork American River South Fork of the American River. These BLM managed areas are part of a 20-year joint effort with the American River Conservancy to protect the habitat and beauty of the South Fork of the American River. Accessible via Cronin Ranch, Magnolia Ranch and Salmon Falls the trails are "stunning every season of the year. Winter rains bring lush green landscapes that cultivate spring’s abundant wildflowers. The summer’s golden hills contrast with the oak woodlands that lead you through fragrant sage-covered ridge tops. The fall colors reflecting against the river take one’s breath away. The trail represents the foothills’ various healthy