A new management strategy setting out plans for the Avebury World Heritage site (WHS) has been launched.
The management plan covers the period 2005-2011
It aims to protect the Wiltshire site for future generations and balance the needs of the local community and the 350,000 visitors who visit every year.
The plan also deals with issues such as traffic, nature conservation and archaeological research.
An English Heritage spokesman said the plan shows how the site's monuments and landscape will be preserved.
Action plan for site
Improving the management of archaeological sites within the WHS and reducing visitor erosion at key monuments.
Implementing a long-term solution to repair Silbury Hill.
Establishing safe pedestrian crossing points in the Henge monument and at other key locations in the WHS.
Ensuring there are adequate resources for all proposals within the plan.
The Avebury World Heritage Site was inscribed on the World Heritage List by UNESCO in 1986 together with Stonehenge.
It was inscribed because of the importance and good survival of the six key prehistoric monuments - the Henge and Stone Circle, West Kennet Avenue, Silbury Hill, Windmill Hill, The Sanctuary and West Kennet Long Barrow.
The Avebury stone circle is the largest in the world. The World Heritage Site is 22.5 square kilometres in size (2250 hectares), and contains more than 300 known archaeological sites.