In the Redding area, you might try the drive up to Burney or over to Willow Creek and up to Hoopa and then Happy Camp Lots of twisties. Heck just I-5 along Shasta Lake is a kick. Or, go down to Williams and head for Ukiah via Hwy 20. Pretty drive along Clear Lake and lots of curvey road.
30 years ago, I used to live in Burney. Anybody who lives in Redding and can't find a crooked road, hasn't left his driveway
Am I right Lew?
Al