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Because archaeologists often cannot walk every inch of land, they search where experience has taught them are likely places to find sites.Sometimes, they map out an area in sections and survey a sample of sections. These include clipboards and paper to make notes; bags to label and contain samples of artifacts; geologic maps to learn about the lay of the land and to record site locations; a compass for orientation; and a camera to capture photographic records.When they find a site, archaeologists make notes and record its location on maps.Back in the laboratories, they give each site an identification number and fill out a site form.How they conduct the pedestrian survey depends on the lay of the land.
They may gather new data by conducting regional surveys to locate archaeological sites.Often the sites are buried, and archaeologists check eroded hills above stream banks and plowed fields for evidence.In densely vegetated areas, archaeologists will sometimes dig a small hole every 50 feet or so, sampling the area to see if evidence of buried sites shows up.This is a systematic examination of the land looking for sites.
Typically, archaeologists search for sites on foot, although aerial surveys are used to reveal sites that are invisible at close range and where the terrain makes walking difficult.
For example, some archaeologists recreate stone tools using manufacturing methods like those they think ancient peoples used.