Learn about a 24-satellite constellation situated around Earth to provide people with a Global Positioning System. Find out about new popular Geocaching game or GPS treasure hunt. Learn how to read clues of your surroundings and get oriented in unfamiliar places. Includes photographs, maps, and latitude and longitude finders.
Learn more about geocaching and how GPS devices help adventurers find modern treasures. Enter your zip code to see if a geocaching event is located near where you live. NOTE: This site leads to social networking sites.