Stonehenge Avenue a natural formation of rills with an existing astronomical alignment. The Avenue, along with Stonehenge itself, is a Scheduled Monument, first designated in the 1882 act which was the earliest legislation to protect British archaeological sites. Stonehenge Avenue Stonehenge Avenue is an ancient avenue on Salisbury plain, Wiltshire, England. It is part of the Stonehenge, Avebury and Associated Sites UNESCO World Heritage Site. Discovered in the 18th century, it measures nearly 3 kilometers, connecting Stonehenge with the River Avon. It was built during the Stonehenge 3 period of 2600 to 1700 BCE. Along some of its length The Avenue is
Stonehenge geologists from University of Leicester and the National Museum of Wales announced the discovery of the exact source of some of the rhyolite fragments found in the Stonehenge debitage. These fragments do not seem to match any of the standing stones or bluestone stumps. The researchers have identified the source as a long rock outcrop called Craig Rhos-y-Felin (), near Pont Saeson in north Pembrokeshire, located from Stonehenge. On 10 September 2014 the University of Birmingham announced findings including evidence of adjacent stone and wooden structures and burial mounds, overlooked previously, that may date as far back as 4000 BC.