Using the Sprint Family Locator Service (http://sfl.sprintpcs.com) to track the JoRoMoHo across the US!
Looks like the JoRoMoHo is just south of Tucson.. I was unable to find
an exact address, but they are in this general area:
[JEFF] If you zoom in while in "hybrid" mode you can see the campground where we were staying in the top right-hand corner of the screen ... but we are not there anymore! John, your next search should find us in New Mexico!
http://maps.google.com/maps?f=q&hl=en&q=S+Houghton+Rd+and+Interstate+10,+Tucson,+AZ+85747&ie=UTF8&z=7&ll=32.824211,-111.796875&spn=5.694617,12.810059&om=1&iwloc=A
[Update on 10/10] Here's a zoomed in view of the old campground...
http://maps.google.com/maps?f=q&hl=en&q=S+Houghton+Rd+and+Interstate+10,+Tucson,+AZ+85747&ie=UTF8&z=18&ll=32.068279,-110.764375&spn=0.002805,0.006255&t=h&om=1&iwloc=A