Roads of Colombia, South America from Digital Chart of the World

Apr 7, 2011 (Last modified May 15, 2011)
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Description:
The Digital Chart of the World (DCW) is an Environmental Systems Research Institute, Inc. (ESRI) product originally developed for the US Defense Mapping Agency (DMA) using DMA data. The DCW 1993 version at 1:1,000,000 scale was used. The DMA data sources are aeronautical charts, which emphasize landmarks important from flying altitudes. This explains why there is a separate aeronautical theme with all conceivable airports, yet why on some themes small islands and lakes are simply unnamed points. ESRI, in compiling the DCW, also eliminated some detail and made some assumptions for handling tiny polygons and edgematching. Also, note that the completeness of the thematic categories present in each layer will vary. Please read the layer descriptions (through links in the following table).
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Environmental Systems Research Institute, Inc.
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not specified
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1:1,000,000
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Geo Community
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Creative Commons LicenseThis work is licensed under a Creative Commons Attribution 3.0 License.
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Dataset Type:
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Tags:
digital chart of the world, esri, colombia, america del sur, south america
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