The largest and best-preserved Cotswold-Severn long cairn in Wales was only recently discovered in 1972 when rubble-quarrying damaged part of it. Excavation of the disturbed area and planning of the substantially intact remainder revealed a blocked forecourt, portal, main chamber and at least three lateral chambers. Disarticulated remains of several individuals and a very few artefacts were found, including the oldest dated musical instrument from Wales – a flute made from a sheepbone; the other is a human rib bone damaged by an arrow.
The site was surveyed by TerraDat UK Ltd. using an integrated geophysical approach to investigate the internal structure of the Long Cairn. The site was also accurately mapped in detail using terrestrial laser scanning.
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