The main ancient settlements in Chaco Culture National Historical Park
are equal in size, complexity and good state of preservation to the famous cliff dwellings of Mesa Verde
, which receives over seven times as many visitors, but the reason for the difference is quite obvious. Chaco is reached only by a 20 mile drive on unpaved roads, part of which can be quite rough, though still usually fine for all vehicles except large RVs. The preserve is located in the San Juan Basin of northwest New Mexico, and is centered on a shallow canyon; the largest of the pueblos were built along the valley floor, and a few others are found on the surrounding mesatops. The preserve has a short scenic drive, four interesting trails and a campground.
Chaco Culture - full description