Show megalithic art relies relics unearthed in ireland London londonderry derr y important arche discoveries giving insight into the lives of Ir elands inhabitants between and years ago have been made by students from queens university belfast in excavations at Bally briest county derry they completed the unearthing of a foot megalithic burial cairn revealing two large burial chambers in these were found more than late stone age pieces of pottery and flint implements like scrapers and knives one chamber was intact but the standing stones forming the side of the other had been removed long ago and the walls had caved in |