The barrow is considered to be of the Severn-Cotswold tomb type.[2] These generally consist of long, precisely built trapezoidal earth mounds covering burial chambers, thus they are a type of chambered long barrow. The chamber, made of sarsen stones, contained partial human skeletons. An arrowhead was also recovered.[1] There is a breast-shaped hill on the spot, with the remains of the barrow being 70 metres (230 ft) long and around 7 metres (23 ft) high with ditches on either side.[3] It was partially excavated by John Thurnam in 1860.[1] The area around Adam's Grave has a high density of long barrows and is important because of its archaeological potential.[1]
The arrangement of stones around the site suggests there was once a kerb or forecourt.[4] They are known as 'Old Adam' and 'Little Eve' and are near the original entrance to the barrow. According to folklore the barrow is the grave of a giant, and his ghost has been reported.[5][6] Associations with the nearby monument at Avebury have also been suggested.[7]
