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Scheduled Monument
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Scheduled Ancient Monuments (SAMs) are those archaeological sites which are legally recognised as being of national importance. They can range in date from prehistoric times to the Cold War period. They can take many different forms, including disused buildings or sites surviving as earthworks or cropmarks.
SAMs are protected by law from unlicensed disturbance and metal detecting. Written consent from the Secretary of State must be obtained before any sort of work can begin, including archaeological work such as geophysical survey or archaeological excavation. There are nearly 200 SAMs in Warwickshire.
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Cropmark
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Cropmarks appear as light and dark marks in growing and ripening crops. These marks relate to differences in the soil below. For example, parched lines of grass may indicate stone walls. Crops that grow over stone features often ripen more quickly and are shorter than the surrounding crop. This is because there is less moisture in the soil where the wall lies.
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Aerial Photograph
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Aerial photographs are taken during an aerial survey, which involves looking at the ground from above. It is usually easier to see cropmarks and earthworks when they are viewed from above. Aerial photographs help archaeologists to record what they see and to identify new sites. There are two kinds of aerial photographs; oblique and vertical.
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FEATURE *
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Areas of indeterminate function.
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LINEAR FEATURE *
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A length of straight, curved or angled earthwork or cropmark of uncertain date or function.
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* Copyright of English Heritage (1999)
