Plan and more information here
This whole area is a top level Neolithic-Early Bronze Age ceremonial landscape. Dorchester has a line of henges and Neolithic enclosures of various dimensions overlooked by the most impressive of Iron Age hillforts, Maiden Castle. This overlies a unique monument, the later Neolithic bank barrow 600m long which in turn overlies the causewayed enclosure built about 3600 BC.
https://archaeologynationaltrustsw.wordpress.com/2014/05/20/max-gate-and-the-south-dorset-ridgeway/
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