How do archeologists know where to look for sites?
The discovery and examination of archeological resources are two basic activities undertaken by archeologists. Archeological surveys seek to identify all or a sample of the archeological resources in a given study area. Site testing or evaluation focuses on extracting information about the size, contents, and structure of an archeological site, a portion of a site, a number of related sites, or, perhaps, the spatial distribution of archeological remains within an area, such as a portion of a river valley or a battlefield. Choosing appropriate techniques for an archeological investigation depends on many factors. First, one must consider the purpose of the investigation. Is the target one kind of siteāfor example, a prehistoric mound or a site of a particular time period? Or is the goal to find the full range of site types within a given area, as is the typical case for historic preservation and environmental impact-related studies? If a particular type of site is the target, one can fo