Troller's Gill is a limestone gorge at the head of Trollerdale (Valley of Trolls), close to the village of Appletreewick in the Yorkshire Dales. Legend tells that this gorge is inhabited by trolls, as its name shows, but also by goblins, pixies, boggarts, gnomes and by the mythical monstrous black dog Barghest... so beware of this place!
