Fixed that for ya. I have a lot of family in Oklahoma. Can't imagine a whole lot of great riding where they live though. They're in El Reno mostly. Some in Norman. Pretty much all flat and straight from what I've seen the half dozen times I've been there.
Fredrod...I'm located in Norman. I often ride with a groups out of ADA and the OKC. Lot of times I will venture down to SE OK where there are plenty of hills, curve, etc. Especially around Talihina OK. Try this site. If you are on facebook (im only on it to find rides). Then look up these groups: LET'S Ride, Riders of Norman, Five80 Riders and Friends. You can look me up on facebook Johnny Irons and I will invite you to the other sites since it is invitation only.
These are all sorts of bike. CBR, GSXR, Ninja, Ducati's, Stunt bikes, even a few sportsters.