- Provides coverage of the increasingly popular sport of "geocaching," in which people hunt for a canister hidden at precise geographic coordinates.
- Explains how to turn cell phones and PDAs into GPS receivers and what hardware is required for connecting a GPS receiver to a PC.
- Shows how to use popular, inexpensive software packages to create topographic, aerial photographs, and three-dimensional maps, and discusses free Web-hosted map services.
- The author's diverse background in archeology, outdoor rescue, adventure racing navigation, and disaster response set him apart from other people writing about this topic.
