Sunrise over the site of the Lanarkshire and Dumbartonshire Railway

The Lanarkshire and Dumbartonshire Railway was a railway company in Scotland. It was promoted independently but supported by the Caledonian Railway, and it was designed to connect Balloch (on Loch Lomond) and Dumbarton with central Glasgow, linking in heavy industry on the north bank of the River Clyde. From Dumbarton to Balloch the line would have closely duplicated an existing railway, and negotiation led to the latter being made jointly operated, and the L&DR terminated immediately east of Dumbarton, trains continuing on the joint section. Quoted from Wikipedia.