Stone tools are useful proxies for understanding prehistoric mobility because the geological sources of specific stone types can often be identified through detailed mineralogical and chemical analysis.

When a stone tool found at a distant location can be sourced to a specific geological formation, it documents that either the people who made the tool traveled to that formation, or that the tool moved through exchange networks between the formation and the site where it was found.

The Anzick artifacts include pieces made from stone that came from sources at varying distances from the burial site.

Some of the stone is from local or regional sources — within a relatively short distance of the Anzick location.