Chaco Culture National Historical Park [-> Wikipedia] is definitely a bit off the beaten track, in North-Western New Mexico (roughly between Farmington and Albuquerque, New Mexico; south of Durango, Colorado), see The National Park Service – Chaco for details. I came in from the south (impassible when wet), and stayed the night at the campground after a day of exploring this not-so-well-known gem of a sacred site.
Chaco Culture National Historical Park has the densest and most exceptional concentration of pueblos, preserving one of the most important pre-Columbian cultural and historical areas in the United States. Between AD 900 and 1150, Chaco Canyon was a major center of culture for the Ancient Pueblo Peoples.
Couple more photos:
Some petroglyphs in the area too:
…and deer and elk: