NM 180 South from Alpine very scenic and easy for you rig, downhill all the way. Mule Pass Hwy 78 a little white knuckle East to West, but 22' no problem. We pull 37' 5er and need exhaust brake at crest down to four way stop at 191 and 78 highways. Road to Safford great! I-10 from Willcox to Tucson can be pretty windy at times in the Spring. Picture Rocks is on NW side of Tucson. West side of Picture Rocks Rd can be tricky with many bicyclists training for spring races in early am. Everyone should do AZ 191 South from Alpine to Morenci once in their lifetime as is is very scenic, but the old "666" is slow (35mph) and I would never pull a trailer on it. Salt River canyon would not be on my bucket list to tow a trailer, but we know many who do without problems. NM 180 to Silver City no problem and a fun town to explore for a few days. Hope that helps. Have a great time!
