SR 165 is pretty bumpy, all I ask is that you try to at least trailer up beyond the residences and into the dirt. The road is plenty wide to trailer that far up and park on the shoulders or in the pull-outs. I expect the road to get worse before it gets better, but the farther up you can trailer the better. I'll be up there today so I'll check, but as of last weekend you could drive all the way to Evans, but I don't think I'd do it with my trailer..