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842. World Rivers

Line Harvard University Restricted content
1999. ESRI, Inc. Layer contains major rivers of the world.

843. World Wildlife Fund Ecoregions, 2000

Polygon Columbia University Restricted content
1999. World Wildlife Fund and Environmental Systems Research Institute, Inc. (ESRI). World Wildlife Fund Ecoregions represents global terrestrial and freshwater ecoregions defined as relatively large areas of land or water in the wo... Environmental Systems Research Institute, Inc. (ESRI).

844. wwf_eco

Polygon Harvard University Restricted content
1999. World Wildlife Fund. World Wildlife Fund Ecoregions represent 24,944 defined global ecoregions. Ecoregions are defined as relatively large areas of land or water that s...

845. Wyoming Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Wyoming Block Groups represents the U.S. Census block groups of Wyoming. Environmental Systems Research Institute, Inc. (ESRI).

846. Wyoming Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Wyoming Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Wyoming. Environmental Systems Research Institute, Inc. (ESRI).

847. Wyoming Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Wyoming Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Wyoming. Environmental Systems Research Institute, Inc. (ESRI).

848. Wyoming Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Wyoming Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Wyoming. Environmental Systems Research Institute, Inc. (ESRI).

849. Wyoming ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Wyoming ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).
1999. Harvard Map Collection, Harvard Library, Metropolitan Area Planning Council (Boston, Mass.), and Massachusetts. Executive Office of Environmental Affairs. This layer is a georeferenced raster image of the historic paper map entitled: Town of Canton :map 1: zoning and absolute development constraints /... Harvard Map Collection, Harvard Library.