I found this 20 or so mile stretch of highway purely by chance.. was on my way to Pullman (Colton actually) from the wet side of the state, when I decided to change it up a little and go thru Lewiston/Clarkston, when I came across this gem
it's the stretch of SR261 south of Washtucna, heading towards Pomeroy... the map indicates it's a pretty straight shot, however, it's the most twisted up road I've ever seen, with non-stop elevation changes.. even sweeter, it's brand new pavement, with NO TRAFFIC what-so-ever.. maybe the occasional tractor or farmer in a pickup truck, but otherwise, it's empty...
another nice thing, if you do wind up going into a corner a bit too hot, you'll likely just wind up a couple hundred feet into a wheat field
and also, there are very few blind corners, and can see pretty much all the way thru them..
yeah, it is way out in the middle of no-where, but arent all the best roads like that?