Cristo is a fairly wide snow gully, and is not particularly technical to ski. That said, it is steep enough to demand advanced ski abilities.
Cristo is rated D8 or D9 depending on snow conditions. For information on the D rating system, see here: http://www.wildsnow.com/articles/ratings/ski-board-d-rating-system.html
In good snow conditions, Cristo can be skied right off the summit. Depending on snowpack, there may or may not be a few rocky patches to navigate. The gully has a few rollovers, the steepest reaching 40-45 degrees. The slope has a double fall-line, and is generally a bit mellower if you stay towards the skier's right side. While not a true no-fall zone, the double fall-line nature also means that a sliding fall in the couloir could be dangerous.
Cristo Couloir is a very large avalanche path and has claimed it's share of victims. As such, this route is recommended as a spring descent in times of good stability only. Also, whether you're driving or skinning up Blue Lakes Road, be aware that several major avalanche paths threaten the road near the dam.[more]
The Kachina Peaks (AKA: San Francisco Peaks) are the tallest mountains in Arizona with some amazing backcountry. One can find anything from cirques to chutes and long runs. Even though this is Arizona, there is still high avalanche risks. The only avalanche caused fatality in this desert state was in these mountains, be educated. Every person needs a free permit from the U.S. Forest Service which can be obtained at the Peaks Ranger District.
How to Get There
The mountains are the largest peaks to the north of Flagstaff, Arizona. From Flagstaff there is a few ways to reach the ski lines depending on what you are trying to do. The easiest way is from the ski area, but if the ski area is not open it can be difficult to get to the backcountry ski runs. There is also the east side from Lockett Meadow Rd which can be accessed from Hwy 89 or if the roads are open from the north via the Abineau trail.