The barrow has been excavated on three separate occasions, 23 bodies were discovered within the site. The digs uncovered the remains of fires, and pig bones, within the forecourt, indicating that ritualized meals were eaten, during burial ceremonies. At the time of the first excavation, Nympsfield was thought to be unique in being the only chambered barrow in which bones from birds had been discovered, A leaf-shaped arrow-head and shards of pottery were also discovered.
Quartz pebbles were noted amongst the blocking deposits at both ends of the mound. This is a common feature of many long barrows in the
Cotswold-Severn Group, in north Wales and northern and central Ireland and is thought to have a symbolic meaning. Nympsfield Long Barrow is part of the Cotswold–Severn group of monuments. It is similar in layout to the chambered tombs of
Uley and
Notgrove. It lies close to the so-called "Soldier's Grave" round barrow. The site was also occupied in both the
Iron Age and
Roman times. ==References==