This is all that's left of Pendragon Castle - a romatic ruin close to the River Eden in Cumbria. Romantic not least because according to local folklore, it was built by Uther Pendragon, father of the legendary King Arthur.
This may be difficult to tally with the castle's twelfth century origins. There's nothing to suggest any pre-Norman fortification here, But since when did historical fact ever get in the way of the Arthurian myth.
The location of the castle is truly magical - a little south of Kirkby Stephen not far from the River Eden. It's said that Uther Pendragon tried and failed to divert the Eden to fill the castle moat.
The moat remains impressively deep in parts - and entirely dry.
In the distance above, on the far side of the Eden, you can see the dramatic outline of Wild Boar Fell, which at over 2,300 feet is one of the highest fells in the Yorkshire Dales.
Rather more reliable than the Arthurian angle is the fact that the sinister-sounding Sir Hugh de Morville, an owner of Pendragon Castle, was one of the four knights who murdered Thomas a Becket in Canterbury Cathedral.
The castle suffered a couple of times at the hands of the harrying Scots but was still occupied in the 1670s. Now the only residents are the Dales sheep.
Andrew Whitehead's blog
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