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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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Imperial
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1751 AD to 1914 AD (end of the 18th century AD to the beginning of the 20th century AD)
This period comes after the Post Medieval period and before the modern period and starts with beginning of the Industrial Revolution in 1750. It includes the second part of the Hannoverian period (1714 – 1836) and the Victorian period (1837 – 1901). The Imperial period ends with the start of the First World War in 1914. more ->
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SITE *
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Unclassifiable site with minimal information. Specify site type wherever possible.
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INDUSTRIAL *
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This is the top term for the class. See INDUSTRIAL Class List for narrow terms.
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DITCH *
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A long and narrow hollow or trench dug in the ground, often used to carry water though it may be dry for much of the year.
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SLUICE *
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A dam which can be raised or lowered to regulate the flow of water.
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DRAINAGE DITCH *
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A long, narrow ditch designed to carry water away from a waterlogged area.
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WATER MEADOW *
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Grassland fertilized by allowing floodwater to cover it in winter.
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* Copyright of English Heritage (1999)