Tshela (or Tsela) is the main town of Bas-fleuve district in Kongo Central Province in the Democratic Republic of Congo. The town was linked to the port of Boma by an isolated narrow gauge railway, the Mayumbe Line. This 600mm (converted from 610-millimetre (24 in) gauge in 1932) between 1889 and 1932 before being converted to gauge line lasted from 1889 to 1984.