Historical maps were also scanned and formatted to fit the document.
Other Geographic Information Systems (GIS) generated maps were created to
illustrate spatial relationships between tribes, locations of villages or
events, Indian trails and migration patterns, general locations of
archeological finds and changes in occupancy over time. Full-page maps are
offered whenever possible to provide the greatest detail over a large
area. Earlier maps of New England, done by Europeans, create the earliest
geographic context New England Mass Bay Colony and Essex County.