From San Antonio we just took I 35 up to I 40 to Gallup and then north, cutting off a corner of Colorado and going into Utah on 191. We mostly just used Google Maps. The weather was cold but the roads were dry. We may have lucked out but we really didn't have any issues. We spent one night in Cortez, one in Moab, we are military so we spent one night at Hill AFB, and our last night we spent in a Motel in Baker Oregon cause it was really cold, but there were RV parks in Pendleton we could have stayed at. If you need anything else just let me know.