Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1.
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Traffic Volume: Washington, D.C., 2006

2006. City of Washington, DC. Traffic volume of Street segments. The dataset contains traffic volume data, created as part of the District of Columbia, Department of Transportat...

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Traffic Volume: Washington, D.C., 2007

2007. City of Washington, DC. Traffic volume of Street segments. The dataset contains traffic volume data, created as part of the District of Columbia, Department of Transportat...

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United States Concise - Geographic Names Information System (GNIS)

2009. United States Geological Survey (USGS). The Geographic Names Information System (GNIS), developed by the U.S. Geological Survey in cooperation with the U.S. Board on Geographic Names (BGN...

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United States Historic Features - Geographic Names Information System (GNIS)

2009. United States Geological Survey (USGS). The Geographic Names Information System (GNIS), developed by the U.S. Geological Survey in cooperation with the U.S. Board on Geographic Names (BGN...

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United States Populated Places - Geographic Names Information System (GNIS)

2009. United States Geological Survey (USGS). The Geographic Names Information System (GNIS), developed by the U.S. Geological Survey in cooperation with the U.S. Board on Geographic Names (BGN...