Palo Duro SP is south of Amarillo, off I27, so that requires a little back-tracking from I40. An alternative is 287 to I20, then 84 and I27 up to Amarillo. We made the trip last summer, stayed in Lubbock and saved about 100 miles by staying on 84 all the way to Santa Rosa, NM. 550 is a good road in NM, just a steady climb for most of the route, Colorado portion is not as good, but not that much distance.
Plenty to see and do in Durango, Silverton and Ouray.
Texas Baptist Men-Retiree Builders member since '01
13 Silverado 3500HD D/A, 2wd CCSB srw, custom RKI bed
11 Cruiser CF32MK