[IRCA] USGS free topo maps

["Mark Durenberger" <Mark4@xxxxxxxxxxxxxxx>]

For your next DX-pedition, the following may be useful (from the 'Broadcast' 
reflector):

Cheers!

Mark Durenberger



USGS is in the process of converting all of the 7.5 minute quads to GeoPDF, 
available for free download from the US Topo website:

http://nationalmap.gov/ustopo/

The National Map Viewer is a very convenient tool to determine coordinates 
and spot elevations:

http://viewer.nationalmap.gov/viewer/ 

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