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            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
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           - (see below: Enlarged view)
 
          
          
        
        Summary 
        
         
          
           | Description | 
           
             English: Condensed explanation of  azimuthal-equidistant projection maps, colored as smaller PNG image, from larger, wider USGS file of GIF format. See enlarged view below, using a wikitable to expand beyond original size. 
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           | Date | 
           17 February 2005 | 
          
          
           | Source | 
           derivative from USGS image file (with map sections colored red/white), 
             - URL:  http://erg.usgs.gov/isb/pubs/MapProjections/graphics/azimuthal.gif
 
             
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           | Author | 
            User:Quadell, re-coloring US Government USGS image. | 
          
         
         
        
         
        
        
         
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          This map image could be recreated using  vector graphics as an  SVG file. This has several advantages; see  Commons:Media for cleanup for more information. If an SVG form of this image is already available, please upload it. After uploading an SVG, replace this template with {{ vector version available|new image name.svg}}. | 
         
        
        Enlarged view 
        
         
              
           Explanation of azimuthal-equidistant projection. 
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        Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          I, the copyright holder of this work, release this work into the  public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse 
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          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          This image is in the  public domain because it contains materials that originally came from the  United States Geological Survey, an agency of the  United States Department of the Interior. For more information, see  the official USGS copyright policy. 
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       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
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