U.S. territorial expansion. These maps are found at the Univ. of Texas at Austin. There are 13 maps in this series covering
from 1775 to the present. Don't overlook other historical maps at this
site that might relate to part of your family's history.
MrSid version of map16.2mb. Works with IE if ExpressView plug-in installed. No luck so far with Firefox.
An old file directory of color state maps showing counties from the US Census Bureau. These are sometimes useful in personal genealogy atlases. Files in all lower case are the map images of primary interest. Those in upper case are state flags. Some will recall these as among the first state/county maps available on the Internet.
AniMap software from Gold Bug. Source of many of the maps linked from this website. Recommended.
SiteFinder Online from Gold Bug (above). Great for old town names, old post offices, Native American village sites. Many of the sites on this map came from AniMap SiteFinder.