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NOT SO.

The printed USGS 24k maps show these roads; however they are not all available in ditital form and you may have noticed that few roads/streets on the printed maps have names.  Most GPS users are wanting names and addresses for the roads/streets in their GPSrs.

USGS 100k maps were panelled from the 24ks.  Thus the road/street network is as complete as what was shown on the 24ks for the same area.  I made an overlay/transparent mapset from the 100k transportation files and it is available on this site.  This data is decades old, as are most of the 24k maps.

The free data we have available for roads/streets usually comes from the Census.  They created it and use it to locate where people live for their census counts.  If there are no residents along a backcountry road, it would be unlikely funding would be available for the road to get into their database.    Some States have road/street data available on their GIS websites; however, the currentness, completness and attributes are quite variable.

Garmin's road/street data is licensed from NAVTEC.  The money is where people live, where the businesses are, etc. 

Thanks you for the post.


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