The Argyle Line is a suburban railway located in West Central Scotland. It connects the Lanarkshire towns of Lanark, Larkhall and Motherwell to West Dunbartonshire via central Glasgow using sub-surface running. It takes its name from Glasgow's Argyle Street, under which a significant section of the line runs via a cut-and-cover tunnel. The line was developed by Strathclyde Passenger Transport Executive and British Rail.