That section is only 1/2 mile long and is nothing compared to 550 in Colorado(which I didn't tow and was scary). It's over before you know it. I pulled my rig the entire length of route 12 and it was the most spectacular scenery I have ever experienced. Can't wait to do it again. There are some good grades, but the road is good and the traffic is light and the steepest grades are short. Truck downshifted all the way to 1st gear on a 12% grade section. Not for the faint of heart but not scary either. If you don't want to tow it, just drive it.