We're currently working on our 5th book: The Wanderer's Guide to Southern Arizona. Since the GPS tracks are now complete, we've decided to release that data while we continue working on the companion handbook.
The master map covers I-17 from Phoenix to Tucson, as well as Organ Pipe and Chiricahua National Monuments, and the Coronado National Forest. It includes numerous geologic wonders and archaeological sites. The GPS data includes the location of over 150 archaeological sites, plus 100 special points of interest.
As always, those who purchase the GPS bundle will be notified as we begin releasing chapters of the companion handbook. Photos of some places will be included are shown below.