This portal provides access to lessons and information about using Global Positioning Systems (GPS) in education. Materials include ideas for teaching and using GPS in educational curricula; websites, books, and other tools; and information on how to set up and use a GPS reciever. There is also information about setting up and using a compass with a topographic map and on converting GPS coordinates ... Full description.

This booklet, published in cooperation with the U.S. Department of Education and the National Geographic Society, is designed to help adults stir younger children's curiosity about geography with the help of suggestions for simple activities. Topics include how to help young children learn location and direction, how to teach them to read maps, how to teach the concept of place, how to teach about ... Full description.

The National Map is an online, interactive map service published by the United States Geological Survey (USGS). Users can create and print high-resolution shaded relief maps of a local area, a state, or the entire U.S. A variety of data layers are available, including administrative boundaries, geographic names, geology, and land use/land cover. The 'Find Place' tool allows users to find a location ... Full description.

The United States Geological Survey (USGS) is the primary civilian mapping agency of the United States. Materials available at this site include general information about topographic mapping, and information about USGS map products and how to obtain them. There is also information on digital raster graphics (DRG), scanned images of U.S. Geological Survey (USGS) standard series topographic maps. Other ... Full description.

This is an e-book of before-and-after Landsat images (1972-present), showing recent environmental events and introducing the concept of remote sensing. Some changes are due to natural causes and some are due to human causes. Image topics include agriculture, cities, deserts, disasters, and geology. Each set of images includes a detailed description, photographs and maps, a list of references, and ... Full description.

This portal for younger students provides links to satellite imagery, games, and other educational sites such as the National Map. The 'Find Your Home' map viewer allows kids to operate an interactive map and locate their homes. There is also a teacher packet that uses Landsat satellite images to track changes over time. It includes a lesson plan, printable worksheets, downloadable software, and downloadable ... Full description.

This collection of maps shows federally-owned lands and Indian reservations in the U.S. and in individual states. The list is arranged in alphabetical order; each map is available in a preview version (GIF) for viewing online and a printable version (PDF). Full description.

This database contains an extensive selection of digital data and imagery of the San Francisco Bay Area. Products include Digital Elevation Models (DEMs), Digital Line Graphs (DLGs), Digital Raster Graphics (DRGs), Digital Orthophotos (DOQs), and historical maps. Most of these items are available at a scale of 1:24,000; other scales are available for some. Metadata and links to documents outlining ... Full description.

This collection of historic topographic maps goes back to the late 19th century. Comparison of maps of the same area from different times allows users to observe changes in land use over time. The maps can be searched by using list of available quadrangles, by clicking on an interactive index map, or by a word search of feature names. Full description.

This portal, hosted by the United States Geological Survey (USGS) Earth Resources Observation and Science (EROS) division, provides access to geospatial datasets that have been specially prepared for seamless access and delivery. Some data has generalized applications and national extent; other data is specialized for a particular time or event, and usually for a limited region. The home page features ... Full description.