The folks at National Geographic just did a solid favor for all the adventurous outdoor photographers out there. They put every US Geological Survey (USGS) topographical map from across the United States on one easy-to-navigate site and made them easy to print out at home.
If you’ve ever gone hunting topo maps via the USGS, you know that it can be a bit of a pain because, not only is finding the quad you’re looking for more difficult, the PDFs they have available aren’t formatted for standard printer paper.
The National Geographic website solves both of these issues. First, the homepage greets you with a searchable, interactive map: all you have to do is search for or zoom in on the area you’re looking for. Then, once you find your quad, just click on it and a printable PDF loads right up.
More @ Peta Pixel