The Castle Donington line also known as Weston On Trent Branch Railway is a railway line in Derbyshire, England, that runs between Stenson Junction in the west and Sheet Stores Junction in the east. There are no passenger services that serve this line regularly but passenger services are occasionally routed across it. Regular passenger services are routed via Derby. The line is regularly used by freight trains and serves the East Midlands Gateway freight interchange. There are no current passenger stations on the line which previously served stations at Castle Donington and Weston-on-Trent and also linked to the Melbourne Line.

The East Midlands Gateway is a 700-acre (280 ha) rail freight terminal and intermodal freight centre situated to the west of the village of Kegworth in the English East Midlands. It is operated by SEGRO and officially known as the SEGRO Logistics Park East Midlands Gateway (SLPEMG). It is located within the triangle formed by the cities of Derby, Nottingham and Leicester. It has rail access from the Castle Donington line, road access from junction 24 of the M1 motorway, and lies immediately to the north of East Midlands Airport. It thus unites air, road, and rail freight in a central location.