Marcellina Mountain above miles of gold aspen canopy on Kebler Pass at sunset

Why the Best Colorado Aspens
Are in Crested Butte

Right Now

The West Elk Mountains around Crested Butte hold the largest aspen grove in Colorado and one of the largest in North America. The massive aspen stand on Kebler Pass is just one of the nearby spectacles worth experiencing when the annual color change occurs.

From mid September through early October you can not only see, but hike and bike through a multitude of golden canopies that surround CB. Additionally, many groves transform into stunning orange and red hued landscapes unique to this area.

The Fall Color Report
Trails, alerts, and the latest happenings. Every Thursday.

Kebler Pass Is the Real Deal

County Road 12 runs through the aspen grove itself for miles with trailheads and pull-offs along the way, allowing you to venture through its vast network. It significantly varies in elevation as well, from about 6,000 feet at the Highway 133 intersection to nearly 10,000 feet on the road’s high point. This extends the viewing season and duration so you can catch different stages of the change at different times.

Hike Into It

Two of the valley’s best fall hikes start right off Kebler Pass Road: Horse Ranch Park and the Three Lakes Loop, both of them inside the aspen grove the whole way.

Drive Through It

Leave town west on Whiterock Avenue, which becomes County Road 12, and stay on it. The pavement gives out a few miles in and the gravel that follows is wide, graded, and driven by minivans all season. It is a through route toward Paonia, so out and back to the top makes a morning and the full crossing makes a day. Go early: the light through the trunks is best in the first hours and every wide spot is a legal pullout.

Route
County Road 12, west from Crested Butte
Surface
Paved out of town, graded gravel over the pass
Vehicle
Any car in dry weather, no clearance needed
Season
Open summer and fall, closed for winter once the snow settles in
A Million Trees, One Root System

A quaking aspen stand is rarely a crowd of separate trees. Most of it is a single organism that spreads by sending up new shoots from a shared root system, so every trunk on a hillside can be a clone of its neighbors. That is why whole slopes here turn at once, and why the color shifts patch by patch.

Researchers who have tested Kebler stands have found single clones covering entire hillsides. Some believe it may rival the Pando aspen stand in Utah, which currently holds the title of largest living thing on Earth. Nobody has finished counting! It is a good valley for a contest like that.

Gold aspens on Kebler Pass
Kebler Pass aspens in fall color

Fall Color Questions, Answered

When do the aspens peak in Crested Butte?

Most years the color runs from mid September through early October, high elevations first. It is never a single week; the live fall report tracks each area as it turns.

Where is the best aspen viewing near Crested Butte?

Kebler Pass. County Road 12 runs through the largest aspen grove in Colorado for miles, with trailheads and pull-offs the whole way, from about 6,000 feet at Highway 133 to nearly 10,000 feet at the top.

Do I need four wheel drive for Kebler Pass?

No. The gravel is wide and graded, and any car handles it in dry weather. The road closes for the winter once the snow settles in.

Why do whole hillsides change color at once?

Aspens spread by shared root systems, so a hillside is often a single organism. Each clone turns on its own schedule, which is why the color moves patch by patch.

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