The Thornborough Henges complex, near Ripon, is an extremely important site, consisting of three giant, circular earthworks (known as ‘henges’) each more than 200m in diameter. Dating from 3500 to 2500 BC, the henges are of outstanding national significance. The earthworks are thought to have been part of a 'ritual landscape', comparable with Salisbury Plain in south-west England, and are probably the most important single ancient site between Stonehenge and the Orkney Islands in Scotland.
This cache was placed by Juliet, Ted and Mike.