2011. United States. National Imagery and Mapping Agency. World Port Index, 2011 is a point theme representing port facilities worldwide. This dataset was derived from the 21st Edition of the World Port In... National Imagery and Mapping Agency.
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2012. Research Data Services (RDS), Columbia University Libraries and United States. National Imagery and Mapping Agency. World Port Index, 2012 is a point theme representing port facilities worldwide. This dataset was derived from the 22nd Edition of the World Port In... National Imagery and Mapping Agency.
2014. Research Data Services (RDS), Columbia University Libraries and United States. National Imagery and Mapping Agency. World Port Index, 2014 is a point theme representing port facilities worldwide. This dataset was derived from the 23rd Edition of the World Port In... National Imagery and Mapping Agency.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This point shapefile depicts ports worldwide used for loading and unloading vessels and usually located in harbors, including land office, crane, d... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This point shapefile depicts ports worldwide used for loading and unloading vessels and usually located in harbors, including land office, crane, d... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polyline shapefile represents railroads worldwide. There are no attributes and precision XY accuracy is to 20m not 10m. These data are represe... North American Cartographic Information Society.
National Imagery and Mapping Agency. Railroads.The Vector Map (VMap) Level 0 database represents the thirdedition of the Digital Chart of the World. The secondedition was a limited rel... U.S. National Imagery and Mapping Agency (NIMA).
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polyline shapefile depicts single-line drainages and lake centerlines worldwide ranked by relative importance. Includes name and line width at... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polyline shapefile depicts single-line drainages and lake centerlines worldwide ranked by relative importance. Includes name and line width at... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polyline shapefile depicts single-line drainages and lake centerlines worldwide ranked by relative importance. Includes name and line width at... North American Cartographic Information Society.