An archaeological dig to try to uncover the secret surrounding the "Stonehenge of the North" got under way in Cadeby this week. Entitled the "Cadeby Henge Project", history enthusiasts hope that the excavation will uncover evidence of an ancient stone circle that dates back to 2000 BC. It is thought there could be as many as 20 stones, ranging from 15 to 20ft high, buried just underneath the surface. When the stone circle was visible it would have looked something similar to Stonehenge, and like the famous monument it is believed to have been used as a site for religious worship.