Boulders To Fourteeners: The Colorado Climbing Ladder

Colorado has more climbing than any one person can work through in a lifetime, spread across granite, sandstone, limestone, gneiss and choss. What it does not have is an obvious on-ramp, because the sport is really four different sports wearing the same jacket.

Here is the ladder, bottom to top, with where to actually go.

Rung One: Bouldering

No rope. No partner strictly required. A crash pad, shoes, chalk, and problems that are usually under twenty feet tall.

Bouldering uses the V-scale, running from V0 at the easy end to V17 at the outer limit of what humans have done. V0 to V2 is where a fit beginner lives. The scale is open-ended and deliberately vague, which climbers complain about constantly and have never fixed.

Colorado's bouldering is world-class and unusually accessible:

• The Flatirons and Boulder Canyon. The default. Minutes from town, thousands of problems, and the historical center of American bouldering.
• Mount Blue Sky area. High-altitude granite that stays cool when the Front Range is baking. Renamed from Mount Evans in 2023.
• Chaos Canyon, Rocky Mountain National Park. Alpine bouldering at 11,000 feet with a real approach. Short season, spectacular setting.
• Poudre Canyon. Northern Colorado's quieter option, and less crowded on a Saturday than anything near Boulder.

Start indoors. Denver and the Front Range have a dense concentration of climbing gyms, and three months of gym bouldering will teach you movement that outdoor granite will otherwise beat out of you slowly and painfully.

Rung Two: Sport Climbing

Rope, harness, belayer, and bolts already drilled into the rock. You clip as you go. It is the safest way to climb hard.

Sport and trad both use the Yosemite Decimal System, where technical rock climbing is class 5 and the decimal that follows is the difficulty: 5.0 through 5.15d. Anything from 5.5 to 5.8 is beginner terrain. Most recreational climbers plateau somewhere in the 5.10 to 5.11 range and are perfectly happy there.

Rung Three: Trad

Traditional climbing means you place your own protection into cracks as you climb and remove it on the way out. Nothing is pre-installed. It requires judgment that cannot be rushed, and it is where Colorado's reputation was made.

• Eldorado Canyon. Sandstone south of Boulder, and one of the most historically significant crags in the country. Notoriously sandbagged — a 5.9 in Eldo will humble somebody who climbs 5.10 in a gym.
• Lumpy Ridge. Granite domes above Estes Park. Long, moderate, classic multi-pitch lines.
• The Diamond on Longs Peak. A vertical big wall whose base sits above 13,000 feet. Serious alpine commitment, short season, genuine consequence.
• Black Canyon of the Gunnison. Remote, loose in places, hard to retreat from, and generally regarded as one of the most serious trad venues in the lower 48. This is a destination for people who already know what they are doing.

Rung Four: The Fourteeners

This is the one everybody has heard of, and it is not technically climbing at all until it is.

Peaks are graded on the Yosemite class system, which measures the terrain rather than the difficulty of moves:

The gap between class 2 and class 3 is enormous and it is where most people get into trouble. Class 2 is a hard hike. Class 3 is a place where a slip has consequences and where cloud cover can erase the route entirely.

Two peaks deserve a specific warning. The Maroon Bells are known as the Deadly Bells for a reason — the rock is rotten mudstone that pulls out in your hand, and the standard routes are far more dangerous than their grade suggests. Capitol Peak's Knife Edge is exactly what it sounds like. Neither is a reasonable early fourteener.

Start with Elbert, Quandary, Bierstadt or Grays. Read a current trip report from the last two weeks before you go, not a guidebook from 2015 — routes change, and so do trailhead parking rules.

The Access Rules People Keep Breaking

Colorado climbing access is not guaranteed. It is negotiated, constantly, and it gets revoked.

• Raptor closures. From roughly February through July, sections of Eldorado Canyon, Boulder's open space cliffs and many other crags close for nesting peregrine falcons and golden eagles. These are legally enforced and dates shift year to year. Check before you drive.
• Private land. Several fourteener approaches cross private property under voluntary agreements. Those agreements have been suspended before after trespassing and litter. If a sign says stay on the easement, stay on the easement.
• Human waste. Alpine soil does not process anything. Above treeline, pack it out. Wag bags are stocked at many trailheads for free.
• Parking. Popular trailheads now run shuttles, reservations or timed permits. Showing up at 6 a.m. and hoping is no longer a strategy at Quandary, Maroon Bells or much of Rocky Mountain National Park.

The Access Fund, which is headquartered in Boulder, exists specifically to keep these places open. It is worth the membership if you climb here more than a few times a year.

The Part Nobody Trains

Climbers train fingers and forearms. What limits most people on a Colorado alpine day is none of that.

It is cardiovascular capacity at 13,000 feet, hip and ankle stability on loose talus, and the ability to keep making good decisions when you are ten hours in and cooked. A ten-mile day with 4,500 feet of gain at altitude is an endurance event, and the fifteen-minute gym session that builds a stronger crimp does nothing for it.

The best off-season preparation I have seen for Colorado alpine days is not more climbing. It is combat sports conditioning — sustained interval work, real grip endurance, balance under fatigue, and the specific mental training of staying composed while your heart rate is pinned. Rounds on a bag translate to switchbacks better than almost anything else does.

If You Are Starting This Month

• Three months in a gym before you touch outdoor rock. Learn to fall and learn to move.
• Take a real class for anything involving a rope. Belaying is a skill you are trusted with, not a video you watch.
• First fourteener: a class 1 or 2 peak, on a weekday, starting before sunrise.
• Read the current conditions report, not the guidebook.
• Build the aerobic base first. It is the actual limiter.

The fifty-eight are not going anywhere. The 647 thirteeners behind them are quieter, wilder and mostly empty, and that is where the people who have been doing this a long time tend to end up.

Sources: Colorado Geological Survey peak counts; National Park Service; U.S. Forest Service Rocky Mountain Region; Colorado Parks & Wildlife raptor closure notices; Access Fund. Route conditions change constantly — consult current trip reports and confirm closures before every trip.