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Crater lake trail maroon bells

Crater Lake Trail at Maroon Bells: A Day Hike Guide

A complete guide to the Crater Lake Trail at Maroon Bells near Aspen, with distance, elevation gain, trail conditions, and what to expect.

8 min read
The short answer

About 3.6 miles round trip from the Maroon Lake trailhead with roughly 800 feet of gain, so two to four hours with time at the lake. At close to 9,580 feet the altitude makes it feel harder. It is the first leg of the Four Pass Loop.

The Best Day Hike at Maroon Bells

If you only have a few hours at the Maroon Bells but want more than the parking lot view, the Crater Lake Trail is the hike to do. It starts right at Maroon Lake and climbs gently up the valley to a smaller alpine lake tucked directly beneath the towering twin peaks. It is the same trail that backpackers use to begin the Four Pass Loop, so you get a real taste of the high country without committing to a multi day trip. The payoff at the end is one of the finest mountain backdrops in Colorado.

Trail Stats and What to Expect

The round trip to Crater Lake and back runs roughly 3.6 miles with about 800 feet of elevation gain, which sounds modest until you remember you are starting near 9,580 feet. Most hikers take two to four hours including time at the lake. The route breaks down like this:

  • From the Maroon Lake trailhead, follow the well marked path along the lake shore and into the aspen and conifer forest.
  • The trail climbs steadily through a rocky section, with the Bells looming larger at every switchback.
  • Near the top you reach a junction where the West Maroon and Maroon-Snowmass trails split. Crater Lake sits just beyond.
  • Return the way you came, or extend slightly along either fork for different angles on the peaks.

When to Hike It

The trail is best from mid July through late September. Earlier in the season the upper section can hold snow and the creek crossings run high with snowmelt. Wildflowers peak in late July, and the surrounding aspens blaze gold in the last two weeks of September, making fall the most spectacular time to go. Start early to beat both the crowds and the near daily afternoon thunderstorms that roll over the basin in summer.

The Easy Alternative: Maroon Lake Scenic Loop

If Crater Lake feels like too much, the Maroon Lake Scenic Loop is a flat one mile stroll around the lower lake with the classic reflection view. It is stroller and family friendly and still delivers the postcard shot. Many visitors do the scenic loop first, then decide whether they have the energy and time to push on to Crater Lake.

Turning a Day Hike Into a Bigger Trip

Crater Lake is also mile one of the legendary Four Pass Loop, the 26 mile circuit that crosses four passes above 12,000 feet. Standing at the lake and looking up at the surrounding ridgelines is often the moment day hikers start dreaming bigger. If that is you, our Maroon Bells Four Pass Loop backpacking guide lays out the full route, the permits and bear canister rules, and where to camp each night.

What to Bring

Even for a short day hike at this elevation, come prepared. Carry at least two liters of water, sun protection, and a warm layer plus a rain shell for the afternoon storms. Sturdy shoes handle the rocky middle section better than sneakers. Remember that you still need a shuttle or parking reservation to reach the trailhead during managed access months, and leashed dogs are welcome on the trail. Pack out everything, stay on the path to protect the fragile meadows, and give the abundant marmots and pikas their space.

Is It Worth It?

Absolutely. For a relatively short, achievable hike, the Crater Lake Trail delivers an outsized reward: a quiet alpine lake sitting right at the base of the Maroon Bells, far enough from the crowds at Maroon Lake to feel like real wilderness. It is the perfect introduction to why this corner of Colorado draws hikers from around the world.

Ready-made tripMaroon Bells Four Passes Loop: Backpacking GuideEvery place in this guide, already timed, mapped, and planned day by day. See the full itinerary.See the full itinerary →

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