2005. Geographical Survey Institute. Canada Landcover is a raster theme representing land cover classifications throughout Canada at a resolution of 30 arc seconds. This layer is a co... GeoAccess Division, Canada Centre for Remote Sensing, Natural Resources Canada, Government of Canada.
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1994. Research Data Services (RDS), Columbia University Libraries and Central Intelligence Agency. This is a scanned version of the 1994 paper map entitled: Eurasia published by the Central Intelligence Agency. The map was scanned at 300 dots pe... Central Intelligence Agency.
2008. Research Data Services (RDS). Index to the Lehman Scanned Map Collection is a polygon theme that serves as an index to scanned sheets from the Lehman Map collection. Each featu...
2008. U.S. Geological Survey. National Populated Places 2000 is a point theme representing cities in the United States, Puerto Rico and the U.S. Virgin Islands. These cities we... U.S. Geological Survey.
1981. Research Data Services (RDS), Columbia University Libraries and United States. Central Intelligence Agency. This is a scanned version of the 1981 paper map entitled: Soviet Union published by the United States Central Intelligence Agency. The map was sc... United States. Central Intelligence Agency.
2013. United States. Bureau of Transportation Statistics. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census...
2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Afternoon Relative Humidity is a point theme representing the relative humidity as measured at weather stations throughout the United... Asheville, North Carloina.
2008. Federal Aviation Administration and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). United States Airport Runways, 2008 is line theme representing airport runways in the United States and US territories. Attributei information incl... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).
2011. United States. Bureau of Transportation Statistics and United States. Federal Aviation Administration. The Airport Runways database is a geographic dataset of runways in the United States and US territories containing information on the physical char...
2008. International Steering Committee for Global Mapping (ISCGM). United States Airports is a point theme representing airports and airfields in United States. This layer is a component of the Global Map, a 1:1,...