Free Printable USGS PDF Quads on 8.5 x 11" paperNational Geographic has built an easy to use web interface that allows anyone to quickly find any quad in the country for downloading and printing. Each quad has been pre-processed to print on a standard home, letter size printer. These are the same quads that were printed by USGS for decades on 22 x 27 inch paper but are now available in multi-page PDFs that can be printed just about anywhere. They are pre-packaged using the standard 7.5 minute, 1:24,000 base but with some twists:
Zoom into your area of interest or use the search box to look for a Quad. Click on the red pointers and then double click on the image in the pop up box to download the multi-page PDF
Page 1 is an overview map showing the Quad in context
Pages 2 through 5 are the standard USGS Quads cut in quarters to fit on standard printers