These things are huge, and have not only the forest roads we use, but a lot of them I had no idea even existed. There are separate maps for different forest units - Catalina/Rincon, Nogales/Sierra Vista, Safford and Douglas. The online versions of the maps split Nogales/Sierra Vista into eastern and western halves. A very nice resource for retreival, site exploration or 4wd.
Links to the maps online can be found here: http://www.fs.fed.us/r3/coronado/forest/maps/maps.shtml
Printed copies can be purchased at USFS offices.
Here's a sample, a clip of about 1/10 of the eastern Nogales/Santa Rita map that shows the area of Miller Canyon, from Rt 92 west to Parker Canyon lake.
<img src="/album_pic.php?pic_id=835" border="0" vspace="10" alt="Partial Coronado National Forest roadmap" title="Partial Coronado National Forest roadmap">
Free Coronado National Forest road maps
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