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Archaeologists have found what they have described as a "breathtaking engineering project" in Lincolnshire. Almost 60 miles of medieval canals, possibly built by monks to ferry stone, have been identified in the Fens. Although the canals were up to 40ft wide they have filled up with silt and are now only visible from the air. Experts said the network of waterways represented an achievement not matched until the Industrial Revolution 300 years later. Viking raiders Martin Redding, of the Witham Valley Archaeology Research Committee, discovered the canals using aerial photographs. "They have been completely infilled by later deposits that have...

The Car Dyke is an eighty mile artificial water channel, thought to have been constructed by the Romans from the first century AD... The Dyke runs along the western edge of the fens from the River Cam near Cambridge all the way to the River Witham, just south of Lincoln. Many stretches are protected as a scheduled ancient monument... William Stukeley... came up with the idea that Car Dyke was a canal... to supply the Roman Armies of the north with grain and food from Lincolnshire and Cambridgeshire with drainage as a secondary function, a view which still perpetuates until...