Archaeologists start excavations on a suspected ancient burial site to try to understand the significance of a Llangollen landmark on which it stands.
But the team will have to work carefully because the 9th Century Pillar of Eliseg, a Cadw-protected ancient monument, stands directly on top of the barrow - burial mound - and the archaeologists can't disturb it.
Medieval archaeology Professor Nancy Edwards, from Bangor University, says it is the first time the site has been dug since 1773 when, it is believed, a skeleton was unearthed.
"We are trying to date the barrow in its broader archaeological context," she said, as the site could date back to the Bronze Age.
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