sentences:  A hair-raising account of a journey through the gorge on horseback is made in Harrison Ainsworth's classic novel of magic and witchcraft, "Mist over Pendle".The valley is a major transport link between Lancashire and Yorkshire, and both the A646 road and a railway line pass through it (there was previously a railway station at Holme Chapel).However a road called 'The Long Causeway' which runs above the valley (passing Coal Clough Wind Farm), is believed to be ancient in its origins, possibly dating back to the Bronze Age.