Parched English fields reveal ancient sites

Tue Aug 31, 2010 10:51am EDT
 
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LONDON (Reuters) - The exceptionally dry early summer months in Britain have revealed the ghostly outlines of several hundred previously unknown ancient sites buried in fields across the English countryside.

From Roman forts to Neolithic settlements and military remains dating to World War Two, English Heritage has been busily photographing the exciting discoveries from the air.

Known as crop marks, the faint outlines of unseen buried structures emerged because of the length of the dry spell, leading the national conservator to label 2010 a vintage year for archaeology.

The outlines show up when crops grow at different rates over buried structures. Shallower soils tend to produce a stunted crop and are more prone to parching, bringing to light the new features.

"It's hard to remember a better year," said Dave MacLeod, a senior investigator with English Heritage.

"Crop marks are always at their best in dry weather, but the last few summers have been a disappointment," he said.

"This year we have taken full advantage of the conditions. We try to concentrate on areas that in an average year don't produce much archaeology."

One of this year's most important finds is a Roman camp in Dorset, southwest England. Experts say it is a relatively rare structure in that part of the country with only three others known of in the region.

The lightly built defensive enclosure, which emerged from parched barley fields, provided basic protection for Roman soldiers on maneuvers in the first century AD.   Continued...

 
<p>Prehistoric circular enclosure discovered in the Holderness area of the East Riding of Yorkshire. Archaeologists say the site has no local parallel. Some 60 similar sites were mapped in the area using a light aircraft in just one day. REUTERS/Dave MacLeod/English Heritage</p>