The route from Albuquerque to Chaco via I-550. The route includes 8 miles of paved road (CR 7900 & CR7950) and 13 miles of rough dirt road (CR7950). The 4 1/2 miles before entering the park are very rough and include crossing a wash which is impassable in rainstorms. Travel times and distances to "nearby" towns can be found here. Nothing is very close.
Route from Albuquerque to Chaco via I-40. Chaco is 52mi. from I-40, the last 22mi. on Rte 57 dirt road. Although a bit rough in places the dirt portion is in better shape than its northern counterpart.