Estrada de Ferro do Amapá

The Amapá Railway is a former rail line built by Bethlehem Steel to exploit the manganese deposits in the territory of Amapá (now a state), Brazil. It is, the only railway in the country to use this gauge aside from Line 5 of the São Paulo Metro. The line was also in use for passenger transport.

The line was about 194 km, spanning from mines near Serra do Navio to the port city of Santana. The rail line stopped transporting ore in 2014, and as of 2020, remains derelict.