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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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HOUSE *
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A building for human habitation, especially a dwelling place. Use more specific type where known.
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SITE *
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Unclassifiable site with minimal information. Specify site type wherever possible.
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KIOSK *
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A light, open structure for the sale of newspapers, tickets, etc.
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BUILDING *
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A structure with a roof to provide shelter from the weather for occupants or contents. Use specific type where known.
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TOWER *
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A tall building, either round, square or polygonal in plan, used for a variety of purposes, including defence, as a landmark, for the hanging of bells, industrial functions, etc. Use more specific type where known.
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HUT *
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A building of basic construction, usually smaller in size than a house and constructed from a variety of materials such as mud, turf, branches, wood, brick, concrete or metal. Use more specific type where known.
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SQUARE ENCLOSURE *
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A square shaped area of land enclosed by a boundary ditch, bank, wall, palisade or similar barrier. Small square enclosures (with sides of less than c.20m) have been interpreted as the remains of square barrows of Iron Age date.
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RADAR BEACON *
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A structure which allows aircraft fitted with radar equipment to 'home' in on an airfield in the dark or in poor visibility, and land safely. Radar beacons can also be used as navigation aids.
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DEFENCE *
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This is the top term for the class. See DEFENCE Class List for narrow terms.
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WOOD *
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A tract of land with trees, sometimes acting as a boundary or barrier, usually smaller and less wild than a forest.
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RED HILL *
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Iron Age or Roman coastal site producing salt by boiling of seawater in fired clay pans, resulting in characteristic mounds of 'BRIQUETAGE' (see Archaeological Objects Thesaurus).
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SQUARE *
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An open space or area, usually square in plan, in a town or city, enclosed by residential and/or commercial buildings, frequently containing a garden or laid out with trees.
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AIRCRAFT *
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An aircraft, either whole or in part. Aircraft often survive as commemorative monuments, gate guardians or crash sites.
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STRUCTURE *
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A construction of unknown function, either extant or implied by archaeological evidence. If known, use more specific type.
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OPERATIONS BLOCK *
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A building of varying designs intended for directing military aviation operations. Normally associated with military airfields.
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AIRFIELD *
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An area or site used for the landing and take-off of aircraft, often including associated buildings, equipment and other installations.
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RADAR STATION *
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A building or site incorporating equipment used for detecting the presence of enemy aircraft or ships. Radar Stations can also be used to aid aircraft navigation in dark or poor conditions.
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FENCE *
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A construction of wood or metal used to enclose an area of land, a building, etc.
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* Copyright of English Heritage (1999)