- Contour Survey
- The controlled measurement of natural and artificial landscape features to produce a measured plan or a 3D data set reading as a plan. Features are depicted by either hachures, symbols or contour lines.
- English Heritage
- http://creativecommons.org/licenses/by/3.0 (FISH Event Types Thesaurus)
- http://www.english-heritage.org.uk (FISH Event Types Thesaurus)
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