Just downstream from the Christopher Creek Campground, behind the RC Boy Scout ranch, is the start of the gorge. It has been a canyoneering experience for most. A few routes exist compared to the amount of rock you can see. The north side of the canyon is sunny and makes a fun winter spot; the south side is shady and is better during the warm months. Forget going in July and August, too buggy and hot.
The best parking is near the ADOT Yard (which will be removed spring of 2015). The road is closed at the gate but you may park on pavement until access is assured.
The Access Fund and Concerned Climbers of AZ are working with the Tonto Natl Forest to maintain access.