Library of Congress Formerly called the Rio da Dúvida (River of Doubt), today, the tributary to the Aripuanã River, running a length of 760 km (470 mi), is named Rio Teodoro (Roosevelt River) after Theodore Roosevelt. It was mapped during the Roosevelt-Rodon Expedition in 1914-1915, after Theodore's failed bid for a third term Presidency. Theodore Roosevelt recounts the trip in the book he authored: Into the Brazilian Wilderness. |
Last updated: May 8, 2021