Benjamin Constant railway
The Benjamin Constant railway (Portuguese Ramal de Benjamin Constant) was a 17.658 km (10.972 mi) long 600 mm (1 ft 11+5⁄8 in) gauge Decauville railway in Brazil. It connected the Colônia Agrícola Benjamin Constant from 1904 to 1964 with the riverboat port of Sapucaia on the Rio Caeté opposite Bragança in the state of Pará.
Source: Wikipedia — Benjamin Constant railway (CC BY-SA 4.0)