The Site Mapping database project of ArchAtlas focuses on finding accurate co-ordinates for archaeological sites, making available databases and gazetteers of archaeological sites digitally, and where relevant, linking the database to the visual essays in the Journal, through the OpenAtlas.

The site gazetteers represent a very diverse collection, with differing methodologies of compilation and should not be assumed to provide a systematic sample, for example, of settlement patterns for any particular region or period. However, they are made available here to help archaeologists better locate the sites they study (often a surprisingly difficult task because good locational information is rarely published), and ultimately for archaeologists to share their expertise and data in more productive and imaginative ways.