See my post in the
NW New Mexico? thread.
http://www.bikepacking.net/forum/index.php/topic,4793.0.htmlYou could ride from CR42 (Chain of Craters Backcountry Byway) at SR117 north of the Pie Town area, up through the El Malpais area, east on SR53 (paved, but only for a bit) to Bonita Canyon (CDT hike-through route), then move your way northwest through the Zunis along forest and logging roads up to the McGaffey/Hilso/Quaking Aspen area outside of Gallup (which has some great singletrack). Depending on how much you do in a day, that could be 4 days give or take right there (and you could easily spend a day n the McGaffey area riding those trails).
The link I posted in the other thread to the Zuni Mountain Trail Alliance has (or at least used to) a Google Earth file with very comprehensive data on the old logging roads all through the Zunis along with other trail/road files. Its actually pretty hard to get lost in there.
I ride up there fairly often. Hit me up if you do a trip out there.