This fabulous location is a couple of miles out of Llangollen, on the site of an iron age hillfort. The present ruins date from 1260 and were probably built by Gruffydd II ap Madog, a Welsh warlord and ally of Prince Llywelyn ap Gruffydd. The paths to the castle are impossibly steep for anything but an approach on foot; certainly grocery deliveries must have been problematic.
When Petra and I visited, there was a misty haze, adding a sense of strangeness to the ruins. Even in the mist, it was possible to just make out the arches of Pontcysyllte aqueduct, a few miles away to the west. On a clear day, the views must be truly spectacular.