The Avenue extends over a distance of nearly 2.8km from Stonehenge itself to the river Avon. However it has produced only four radiocarbon determinations which can be considered reliable (results). All of these were antler or bone samples from the base or primary fill of the ditches.
Analysis of these results suggests that the dated objects cover a period of 190-640 years indicating that construction may have extended over several centuries. It is most likely (c 80%) that the first dated event (2590 - 2330 cal BC) comes from the section nearest the Monument (zone G), but it is almost certain (98%) that the last dated event (2240 - 1880 cal BC) also comes from this zone (see probability distributions).
Given the span of the dates and the fact that there is only one measurement from the length between the elbow and the river Avon, it is not possible to reliably estimate the order of construction.
Two determinations from the Avenue have been rejected on technical grounds (rejected results).
The Bluestones
Y and Z holes
Results
Stonehenge Home
