> what I asked for was an e-mail address. 
They don't seem to publish them, but it might be worth a phone call to the
appropriate Ranger District Office. I've found the people at the front desk
at both the Mesa and Cave Creek RDOs to be very helpful, and given Tonto
Archaeologist Scott Wood's support of Geocaching, they may very well be up
to speed on who you should talk to.
You can find the phone numbers for all the RDOs at 
http://www.fs.fed.us/r3/tonto/contactus/districts.html
Steve
Team Tierra Buena