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
American River, South Australia of tourism at American River. Nils Ryberg, a Swedish born immigrant, settled at American River in 1884, and ten years later built the original "Ryberg House" on the site of the present Kangaroo Island Lodge, exclusively for tourist accommodation. Ryberg added to the building over several years, before selling to John and Valerie Linnett in 1913. Ryberg House was completely rebuilt in 1928, and remains today. Fishing trips were an integral part of the business, with three boats, "Warrigal", "Linnette" and "Linnette 2" comprising the fleet which operated until 1985. The business was operated until John Linnett's death in 1955,