 From its terminus at the River Clyde, the General Terminus and Glasgow Harbour Railway proceeded to Scotland Street Junction, where one branch crossed under the Glasgow and Paisley Joint Railway to join the City Union Line at Port Eglinton Junction.The other branch crossed under both the Glasgow and Paisley Joint Railway and the Paisley Canal Line; before splitting at Terminus Junction.One branch joined the Glasgow, Barrhead and Neilston Direct Railway and the Cathcart District Railway at Muirhouse Central Junction, the other branch passed through one of the Eglinton Street Tunnels and joined the Polloc and Govan Railway.