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Cookham appears to have had civilization for the last 4,000 years. There is a little Bronze Age site, set in the northern bend between Marlow and Cookham. At Cockmarsh there are 3 barrows still visible, one just as a crop mark. The biggest is about 3m high, with a bit of a ditch left on the north side.
Cookham has its roots in prehistory you will find two megaliths, the Cookham Stone and the Tarry Stone