Sorry ... last time I did that section I went through Philmont and Cimmaron. Guess my choice would be US285 ... prettier drive. Takes you by Fort Garland, the Cumbres & Toltec station in Antonito, and then puts you on the right side of Taos to see the Rio Grande at the gorge (on 64). There are no major climbs at all after La Veta Pass (about 9300 feet). Good quality 2-lane road the whole way. \ken
Ken & Deb (WIT Club, FMCA, SKP, Harvest Hosts, and grateful volunteers with SOWERs)
2005 Winnebago Vectra 40FD w/400ISL and Allison 3000MH on Freightliner's Evolution chassis, Onan QD7500, 1000w Renogy solar, BlueOx tow gear, and 2015 Cherokee TrailHawk toad.