Pen Dinas

Pen Dinas (Welsh pronunciation: [pɛn ˈdiːnas]) is a large hill in Penparcau, on the coast of Ceredigion, Wales, (just south of Aberystwyth) upon which an extensive Iron Age, Celtic hillfort is situated.

The site can easily be reached on foot from Aberystwyth town centre and is accessible via a series of well marked trails.

Boasting a commanding position at the confluence of the River Ystwyth and Afon Rheidol, it has been described as "the pre-eminent hillfort on the Cardigan Bay coast".

There is a large stone monument dedicated to the Duke of Wellington which was built in the 1850's upon Pen Dinas overlooking Cardigan Bay and the town of Aberystwyth.

The hillfort actually consists of two separate forts built many years apart, which were later combined to form a larger structure.

After this first fort was eventually abandoned several decades passed before work began on a new fortification on the higher summit to the south.

To the south and east huge terraced earth works were built faced with shale which would again have been topped with a wooden palisade.