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Kernow a'gas dynergh

The Cornish Guide - Cornwall / Kernow

The Cornish Guide - Cornwall / Kernow

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Age group: 8+

Location: MID Cornwall


Contact: nr St Columb, PL25

REF: 50.425172, -4.893981


Castle an Dinas is an Iron Age hillfort at the summit of Castle Downs near St. Columb Major (grid reference SW945624).


It is considered one of the most important hillforts in the entire southwest of Britain. It dates from around the 3rd to 2nd century BC and consists of three ditch and rampart concentric rings, all of this 850 feet above sea level.


Traditionally, Castle an Dinas is the hunting lodge (or hunting seat) of the legendary King Arthur, from which he rode in the Tregoss Moor hunt. Apparently a stone in St. Columb allegedly bears the four footprints of his horse, made whilst out hunting.


From 1916 to 1957 it was the site of Cornwall's largest wolfram mine. Many of the old buildings and workings still remain standing. The mine is the type locality for the mineral Russellite but other minerals found here include: Arsenopyrite, Cacoxenite, Löllingite, Phlogopite, and Russellite Topaz Turquoise.





In 1671 a man called John Trehenban of St Columb Major, was charged with the grisly murder of two young local girls and he was sentenced to imprisonment in a cage on Castle an Dinas, and starved to death. This rock is still to be seen and local people used to say that if you ran around this rock fifty times you would hear his chains rattle!

St Austell 9 miles, Newquay 10 miles, Bodmin 12 miles