first trip towing
I agree with the earlier advice for your first trip towing
Take I-40 east to Albuquerque then north on I-25 ... you will only encounter one "small pass" at Raton. Save Wolf Creek pass for a trip where you have more experience.
If you gain confidence in driving and would like to try something more challenging on your return trip you could try going west from Denver on I-70 into Utah and then taking US 191 south through Utah ...
I-70 has grades that are in the 6% range ... getting up them is not the problem ... downshifting and keeping your speed under control on the downgrade is the problem ...
1==>Never go faster down the hill than you were going as you climbed the hill.
2==>When you apply the brakes apply them firmly and in short bursts ... DO NOT RIDE YOUR BRAKES
2004 Winnebago Journey 39W - 2012 Buick Enclave
Present @home Home: Oshkosh, WI
We call our rig "Ernie the Journey"