Oak Creek Canyon is a river gorge along highway 89A, just north of Sedona, in northern Arizona. The Oak Creek flows along the bottom of the canyon, the canyon itself is about 12 miles long, on the Oak Creek Fault. Oak Creek is a tributary of the Verde River of the Verde Valley. Geologic formation of the canyon from the creek is estimated to have began 8-10 million years ago. There are many trails and the drive down the switchbacks show off amazing views.