This CD-ROM, modeled after Houghton Mifflin" s successful Western Civilization and World History GeoQuest products, contains 30 interactive maps that illuminate events throughout US history.United States GeoQuest is reasonably priced, and can be sold as a stand-alone product or packaged with any Houghton Mifflin history text. Each map includes approximately 10 questions and features one of the following levels of interactivity: The Timeline Model, which reflects how an area has changed over timeThe Quest Model, which traces historical eventsThe Transparency Model, which elaborates on the information presented on a mapThe Answer-and-Question Model, which encourages students to read maps precisely