BreckenridgeClimbing.com - Difficulty Rating System

The routes on this site have been given a difficulty rating or "Class". I am using a rating system that has been in use in the United States for over 75 years. The system contains classes ranging from 1 (easy) to 5 (difficult). I chose Green/Blue/Black color codes (like ski trail ranks) when showing route lines on maps and photos. Here is a brief description of the different Class rankings:

Hiking	Class 1	Easy hiking - usually on a good trail.
Hiking	Class 2	More difficult hiking that may be off-trail. You may also have to put your hands down occasionally to keep your balance. May include easy snow climbs or hiking on talus/scree.
Climbing	Class 3	Scrambling or un-roped climbing. You must use your hands most of the time to hold the terrain or find your route. This may be caused by a combination of steepness and extreme terrain (large rocks or steep snow). Some Class 3 routes are better done with rope.
	Class 4	Climbing. Rope is often used on Class 4 routes because falls can be fatal. The terrain is often steep and dangerous. Some routes can be done without rope because the terrain is stable.
	Class 5	Technical climbing. The climbing involves the use of rope and belaying. Rock climbing is Class 5. Note: In the 1950s, the Class 5 portion of this ranking system was expanded to include a decimal at the end of the ranking to further define the difficulties of rock climbing. This is called the Yosemite Decimal System (YDS). The decimal notations range from 5.1 (easiest) to 5.14 (most difficult). Recently, the rankings of 5.10 through 5.14 were expanded to include an "a", "b", "c" or "d" after the decimal (Example: 5.12a) to provide further details of the ranking. None of the routes described on this site are Class 5, so I will not go into detail of the expanded decimal system.

Keep in mind that Class 1 through Class 4 rankings are not very descriptive and do not have any further breakdowns like Class 5. Class 2 is very general and includes a wide range of hiking. At times, Class 2 routes may include dangerous terrain (exposure, loose rock, steep scree, etc.). Just because a route is ranked Class 2, does not mean it is safe or easy. The key to Class 3 is that you are almost always using your hands to move up through the steep terrain (snow or rock). In some cases, I may describe a route as "Difficult Class 2", or "Easy Class 3" to provide more detail.

For ski routes, I use Novice/Intermediate/Advanced ratings and indicate when a route is Very Advanced or Extreme. A specific set of skills is required to ski in the backcountry. Ski routes can be steep, dangerous, and difficult. On many routes, a fall could be fatal. Skiing on a 14er is much different than visiting the ski area and the route difficulties should not be compared directly to ski area standards. A novice 14er ski route does not mean that it is as easy as a green trail at the ski area - it means that the route is recommended for novice backcountry skiers. Novice and Intermediate trails at the ski area are often groomed and free of most obstacles.

EQUIPMENT: For short trips, many people climb in ski boots and just snap on skis for the descent. This is good for short trips but, if you're serious about backcountry travel, it's good to get the right equipment. Ski touring equipment allows you to ski in, ascend slopes using skins, and ski down. Telemark equipment is used by many for backcountry travel and telemark ski descents. Alpine touring (AT) equipment (also called Randonnee) goes beyond telemark. Like telemark, AT gear gets you up into the backcountry but descents are made with alpine skiing technique with your heel locked into a binding. On advanced or extreme backcountry terrain, alpine technique can be safer and allow you to tackle more difficult terrain. The AT field is quickly expanding to include new types of skis, boots, and bindings. Do your homework to get the equipment that fits your style, ability, and destinations. To go "un-tracked" into the backcountry, don't use thin cross country skis.

THE STEEPS: Slope angle plays a large part in the difficulty of a ski route. An advanced slope will often exceed 40 degrees. If a slope is over 45 degrees, it is usually difficult to stop a fall. A fall on a slope over 50 degrees could result in your demise. The first time I looked down a long 55 degree slope, my brain had trouble forcing my skis over the edge. Few ski areas in North America have any runs that exceed 55 degrees. The new, small Silverton (Colorado) Mountain ski area has some of North America's steepest ski area terrain - with maximum angles of 55 degrees. Learn to ski steep runs at the ski area before heading to a steep backcountry route. It's vital to master the "jump-turn" technique. The jump-turn is useful on steep, narrow routes where carving is difficult. Expect to see ski tracks on terrain that you consider unsuitable for anyone with a brain. Another person's idea of advanced or extreme may differ from your own.

WHERE TO GO: Colorado has tons of great backcountry skiing. Most of it is accessed only by expert skiers because of location and difficulty. While many of us have secret spots that draw few skiers, there is an abundance of terrain that can be easily accessed by most skiers. Loveland Pass is the perfect example - it gets a lot of visitors because they can park, hike, ski, and repeat. If you're an experienced backcountry skier, you will likely look for the solitude and challenge of a place beyond Loveland Pass. The options are limitless. If you need to stay near the Front Range, here are a few peaks to consider for a spring ski:
Front Range: Evans, Grays, Torreys, Square Top, Gray Wolf, Parnassus, Woods, Grizzly
TenMile/Mosquito Ranges: Quandary, Bross, Lincoln, Democrat, Sherman, Northstar, Peak 10, Peak 9, Peak 8, Mt. Helen, Crystal Peak
Drive to the Sawatch Range or San Juan Mountains and the skiing is endless. Yankee Boy Basin near Sneffels, Silver Pick Basin near Wilson Peak, Wetterhorn Peak...

TERRAIN + CONDITIONS = LEVEL OF DIFFICULTY: Steepness is not the only factor when determining the difficulty of a backcountry ski route. At a minimum, consider the following factors when planning a descent: Slope angle, snow condition, avalanche danger, sun hit, cliffs, rocks, ICE or hard snow, route exits, run-out, wind, and visibility. It's a great idea to climb what you are going to ski. If you feel it's too steep to climb, then it's probably too steep for you to ski. During a climb, you will be able to identify the desired path of your descent. You may also spot that drop-off that you can't see from the top. It's critical to know when something is beyond your ability before you are in a tough situation. If you are an expert ski mountaineer, you will eventually peer down your first "no-fall" route. This is usually a good time to consider your future in the backcountry. Don't fall.