|   | excavation | Archaeologists excavate sites so that they can find information and recover archaeological materials before they are destroyed by erosion, construction or changes in land-use. 
 Depending on how complicated and widespread the archaeological deposits are, excavation can be done by hand or with heavy machinery.  Archaeologists may excavate a site in a number of ways; either by open area excavation, by digging a test pit or a trial trench.
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		|   | HOUSE * | A building for human habitation, especially a dwelling place. Use more specific type where known. |  | back | 
		|   | BUILDING * | A structure with a roof to provide shelter from the weather for occupants or contents. Use specific type where known. |  | back | 
		|   | FLOOR * | A layer of stone, brick or boards, etc, on which people tread. Use broader site type where known. |  | back | 
		|   | GARDEN * | An enclosed piece of ground devoted to the cultivation of flowers, fruit or vegetables and/or recreational purposes. Use more specific type where known. |  | back | 
		|   | WALL * | An enclosing structure composed of bricks, stones or similar materials, laid in courses. Use specific type where known. |  | back | 
              
              
                
                    * Copyright of English Heritage (1999)
                    