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aerial photographs of Dyance Beck at Dyance Bottom near Summerhouse County Durham, England UK showing some of the underlying archaeology. While I can clearly see something going on there with at least one rectangular outline, after much research I have not managed to find out anything about the site. At the bottom of the photo is Dyance bridge , an ancient crossing over Dyance Beck. The beck forms the boundary between the District of Teesdale on the left and the Borough of Darlington on the right.