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Searched for: GEM Subject is Social studies -- Instructional issues
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To commemorate the 200th anniversary of the Lewis and Clark Expedition and the 125th anniversary of the United States Geological Survey (USGS), the USGS National Center for Earth Resources Observation and Science (EROS)...
This four-page fact sheet provides a brief summary of the analysis of land use in urban environments. Topics include the rapid growth in urban populations, some of the methods used to analyze land use change (mapping,...
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...
This report discusses the spatial distribution of the largest, most damaging floods in the United States and some of the factors that affect this distribution. Topics include regional climatology, topography, and basin...
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...
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