there is no equivalent to the Tail of the Dragon, although Washington does have a bunch of very long and very windy roads. the OPH is definently one of the best and one of my favorite roads. another one that i have alot of experience on, and is a motorcylcist favorite as well. is called “chuckanut drive” it stretches from burlington washginton to bellingham,wa. quite amazing and mostly on the edge of a mountain