I'm looking for any OLD maps or OLD trail maps around Yuma Az or Az in general , I'm lookingmostly for the southern part of the state Yuma East , roblem I run into alot of maps one you down load them an enlarge them enough to see anything the maps just a blurr.
Try searching at http://www.davidrumsey.com/ . They have the biggest collection of older maps that I have found. It is very easy to zoom in very close without losing resolution.
One last note. If you find something promising on the sharlot.org site (or any other site for that matter), search for that particular map on davidrumsey. Most likely it is there too. Then you will have the ability to zoom in.