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British Countrysides - The National Trust
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Anglia_BritishContrysides_Acorn.iso
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_boxhill
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res3
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res23
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1997-05-01
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232b
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Disadvantages- High cost.- Visually they would look unnatural and ugly. - Could cause run-off of water and erosion.- Encourage cyclists and walkers to use same routes which can cause problems.- How often would they need repairing?