Xingu Indigenous Park film "Xingu" (2012). The idea of creating a park originated with a round table organized by the vice president of Brazil in 1952, at which a much larger park was proposed. However, the state of Mato Grosso began granting land within the proposed area to colonizing companies, so the park that came into existence by decree 50.455 of 14 April 1961 was only a quarter of the proposed size. Adjustments were made on 31 July 1961, 6 August 1968 and 13 July 1971. The final demarcation of the perimeter was made in 1978. The area was given the designation of
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,