Northern CA without a doubt. NOWHERE on the east coast can hold a candle to these roads. And don't no one give me The Dragon. Yeah, go on and do The Dragon and make sure to by a nice gold frame for the ticket you get from the cops patrolling that legendary and relatively short stretch of road. Seriously, Northern CA's got it all. If you are sticking to the pavement, the closest thing to a public racetrack I've ever ridden is The Klammath River Higway - Rt. 99 from just north of Yreaka twisting 166 miles through a river canyon down to Willow Creek through Bigfoot country. Not very populated, not much traffic. Slow down through the tiny towns and take care on the Indian Rez as the curves, ov which there are oh so many, are no longer marked, and you will also be in open range country. Plenty of offroad excursions in that area, and plenty more great roads where that came from. I'm pretty sure God has made an appearence here on earth briefly as a civil engineer and designed many of the roads in that area. Just gorgeous!!!!
Marco