Roosevelt-Rondon Scientific-Expedition and the Telegraph Line Commission
Author: first_name: Candido Mariano da Silva
last_name: Rondon
Language: English
Year: 1916

The Roosevelt–Rondon Scientific Expedition was the famous survey that took place in 1913-14 to follow the path of the Rio da Dúvida ("River of Doubt") in the Amazon basin. The expedition was jointly led by Theodore Roosevelt, the former President of the United States, and Colonel Cândido Rondon, the Brazilian military engineer known for his explorations of the Western Amazon Basin and his lifelong support of Brazilian indigenous populations. Almost from the start, the expedition was fraught with