Archaeologists are launching a new dig to try to unearth the secrets of a 9th Century stone monument on a prehistoric mound.
Bangor and Chester university experts will begin excavations at the Pillar of Eliseg near Llangollen, Denbighshire.
It is part of work by historical monuments agency Cadw to conserve the mound and better explain it to people.
Last year excavations focussed on the mound, which was identified as an early Bronze Age cairn.
It followed on from one in the 18th Century.
Professor Nancy Edwards from Bangor University told BBC Radio Wales: “We are looking at the relationship between the pillar and the early Bronze Age cairn on which it stands. Read more.