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WALES—The Royal Commission on the Ancient and Historical Monuments of Wales is using the occasion of a fresh snowfall to undertake an effort to find previously unidentified archaeological sites using aerial photography. Man-made features become easier to find from above thanks to the sun being lower in the sky in winter and because the snow, according to the Commission’s “evens out” the colors on the ground. The effort succeeded in picking out an unrecorded housing structure in central Wales, amongst other discoveries both at well known sites and in areas waiting to be explored.
