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The historical map collection has over 37,000 maps and images online. The collection focuses on rare 18th and 19th century North American and South American maps and other cartographic materials. Historic maps of the World, Europe, Asia, and Africa are also represented.

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"Here at Archiving Early America, you will discover a wealth of resources - a unique array of primary source material from 18th Century America. Scenes and portraits from original newspapers, maps and writings come to life on your screen just as they appeared to this country's forebears more than two centuries ago. "

American Memory provides free and open access through the Internet to written and spoken words, sound recordings, still and moving images, prints, maps, and sheet music that document the American experience. It is a digital record of American history and creativity. These materials, from the collections of the Library of Congress and other institutions, chronicle historical events, people, places, and ideas that continue to shape America, serving the public as a resource for education and lifelong learning.

"Welcome to the U.S. Geological Survey's (USGS) Water Science for Schools web site! We offer information on many aspects of water, along with pictures, data, maps, and an interactive center where you can give opinions and test your water knowledge."

Geocaching is a powerful resource for classroom instruction. Utilizing a GPS and problem-solving skills, students can hunt for high-tech treasures that are hidden all over the world.