[4] The station was on the Harrington and Lowca Light Railway which connected with the Cleator & Workington Junction Railway (CWJR) at Rosehill Junction a short distance north of Copperas Hill and south of Harrington Village.

Workmen's services to and from Copperas Hill variously ran from Moss Bay Cart Siding, Maryport (during the First World War), Workington Central and Seaton (Cumbria).

Later developments, eventually ran northwards towards Workington and northeastwards to meet the Gilgarran Branch at Bain's Siding.

Between them these industrial concerns sustained the railway through Copperas Hill until final closure to all traffic in May 1973.

Its southbound uphill gradient of 1 in 17 was the steepest adhesion-worked British incline carrying a regular, timetabled passenger service.