Keep Out

A walk along the old Thornton Viaduct to the entrance to the Queensbury tunnel
Europe's longest underground cycleway could be built in West Yorkshire if campaigners succeed in their aim to get this abandoned rail tunnel converted into a cycle path.
They want to reopen the abandoned railway tunnel that runs deep under the village of Queensbury as a cycleway which, at just over 1.4 miles (2.3km), would be the longest underground bike route in Europe.
It would avoid steep, traffic-clogged roads and provide a direct link between Bradford and Halifax.