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Atlases and maps

Perry-Castañed Library Map Collection http://www.lib.utexas.edu/Libs/PCL/Map_colection/Map_collection.html

Groups maps into two categories: Online Maps of Special Interest and Online Maps of General Interest. Most maps were produced by the U.S. Central Intelligence Agency. More than 700 maps of the United States are arranged into U.S. Electronic Map Collections by Type, U.S. Territories Electronic Map Collections, and Maps of the United States.

Mapquest http://www.mapquest.com

Good for acquisitions of maps, driving directions, and planning a trip (hotels, dining, city information, weather, etc.). Of particular usefulness are its door to door driving instructions which depicts start to destination, a marked road map, and road directions with distance.

The National Atlas of the United States of America http://www-atlas.usgs.gov

It "shows the distribution of the principal aquifers that supply ground water to the United States, Puerto Rico and the U.S. Virgin islands... Each principal aquifer is classified as one of the six types of permeable geologic material: unconsolidated deposits of sand and gravel, semiconsolidated sand, sandstone, carbonate rocks, interbedded sandstone and carbonate rocks, and basalt and other types of volcanic rock..." (home page).

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