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...
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.
2009. International Steering Committee for Global Mapping (ISCGM). World Landcover is a raster theme representing land cover classifications throughout the world at a resolution of 30 arc seconds. This layer is a ... International Steering Committee for Global Mapping (ISCGM).
2009. International Steering Committee for Global Mapping (ISCGM). Percent Tree Cover is a raster theme representing the percentage of tree cover throughout the world at a resolution of 30 arc seconds. This layer i... International Steering Committee for Global Mapping (ISCGM).