The largest Neolithic causewayed enclosure at 8.5ha (21acres)
The largest British henge monument about11.5ha (28½ acres)
estimated 98 stones, diameter 398m (1305ft), stone height 3-4m (9-18ft)
estimated 29 stones, diameter 104m (340ft), stone height 3-4m (9-13ft)
estimated 100 pairs of stones but probably with sections of a single row, length 2.3km (1½ miles), height of stones1.5-3m (3-10ft) reducing towards the Sanctuary, longitudinal spacing 24m (80ft) reducing towards the Sanctuary width 15m (49ft) reducing towards the Sanctuary and fluctuating slightly elsewhere, constructed in straight sections with slight changes of direction between them
latest estimate 10 stones, diameter 37m (120ft), single remaining stone height 1.2m (4ft )
estimated 50 pairs of stones, approx length 1km, estimated stone height and spacing as Kennet avenue
: 3 stones in a linear formation
the longest, (with the exception of the unexcavated East Kennet long barrow) of its type.
the largest man-made hill, 39.5m (130ft) high
Palisade enclosures: 2 main enclosures about 25-30m (80-100ft) apart, 1 near-circular with an inner circle and straddling the River Kennet, the other elliptical and south of the river, both about 200m (650ft) in diameter. Ditches about 2m (6ft) deep and about 1-2m (3-6ft) wide contained continuous palisades of about 2000 timber posts about 6-8m (20-26ft) high.