[Xastir] NatGeo portal to USGS - PDF Quads - Trail Maps

[VA7OTC JD Erskine]

http://www.natgeomaps.com/trail-maps/pdf-quads

A friend sent me a link to a photog's mention of this. Not too much 
there not at the site itself though some comments he had helped 
understand the process a bit more easily.

http://petapixel.com/2016/08/06/nat-geo-launches-free-website-printing-detailed-topographical-maps/

So, one really has quarters of Quads.

73, John VA7OTC
- more used to our 1:50,000 topo series, or the OSGB Land Ranger stuff