hiking · easy
Maroon Bells – Crater Lake
- Distance
- 5.80 km
- Elevation
- 200 m
- Duration
- 2.5 h
- Season
- Jul–Sep
Rae here. Crater Lake is the short version of the Maroon Bells experience — the one almost everyone who shows up at Maroon Lake ends up doing once they realize the postcard view from the parking area is just the warmup. It's a walk, not a climb, but the setting earns its reputation honestly: two of Colorado's most photographed peaks looming over a glacial cirque, with a quiet lake parked at their feet.
The trail
From Maroon Lake, the path skirts the north shore through aspen stands and willow flats before bending southwest into the West Maroon Creek drainage. The first kilometer is busy and gentle — paved sections, families, photographers staking out tripod spots. Past the lake, foot traffic thins as the trail turns rockier and starts climbing through aspen groves and old avalanche debris. You're gaining 200 m over the 5.80 km out-and-back, so nothing brutal, but the grade is steady enough that you'll feel the altitude. Maroon Lake sits above 2,900 m and Crater Lake is higher still.
The trail surface is mixed: smooth dirt early, then loose rock and root steps in the middle section, with a couple of short rocky scrambles before the lake. Crater Lake itself is smaller and shallower than people expect — more of a tarn — but the position directly beneath North Maroon and Maroon Peak is the payoff. Plan on 2.5 h round trip at a relaxed pace with photo stops.
When to go
The viable window is roughly mid-June through early October, and each chunk of that has tradeoffs:
- June: snowfields can linger on the upper section, creek crossings run high, but wildflowers in the willow flats are at their best.
- July–August: dry trail, full access, and afternoon thunderstorms almost daily. Start early. Like, on-trail-by-7 early.
- Mid- to late September: the aspen turn is the busiest week of the year here. Expect a circus at the trailhead and a slow-moving conga line up to Crater. Worth it if you've never seen it.
- October: shoulder season, fewer people, but the shuttle and reservation system winds down and overnight freezes start.
What to know before you go
- Access: during the managed season, private vehicles are not allowed up Maroon Creek Road during daytime hours. You'll either ride the shuttle from Aspen Highlands or hold a timed parking reservation. Both go through the official reservation system and both sell out — book well ahead, especially for fall color.
- Parking: the lot at Maroon Lake is small and reservation-only when the road is managed. Off-season, it's first-come.
- Water: West Maroon Creek runs reliably alongside much of the trail. Treat anything you draw. Don't count on the lake itself.
- Navigation: the trail is well-signed and obvious. The one place people miss the line is just before Crater Lake, where social paths break off toward the shore — stay on the main tread until you see the lake, then drop down.
- Wildlife: moose use the willow flats near Maroon Lake routinely. Give them a wide berth — well beyond what feels polite.
- Altitude: if you flew in yesterday, this hike will feel harder than the stats suggest. Hydrate and pace yourself.
What to bring
- Sturdy trail runners or light hikers — there's enough loose rock past Maroon Lake that flat-soled sneakers get punished.
- A real rain shell, not a windbreaker. Summer storms here build fast and dump cold rain or graupel.
- Sun protection. You're at altitude, often above tree cover, and the UV is no joke even when it's cool.
- At least a liter of water per person, plus a filter if you're slow or extending.
- Layers for a 10–15°F swing between trailhead and lake, especially in shoulder season.
- Microspikes if you're going in early June or after the first October storms.
Variations
- Shorter: the Maroon Lake Scenic Loop stays on the paved/graded path around the lake itself — flat, short, accessible, and you still get the headline view.
- Longer: from Crater Lake, the trail continues up West Maroon Creek toward West Maroon Pass, or splits north toward Buckskin Pass. Either turns the day into a serious 20+ km outing with real elevation. Pick one and commit; don't improvise on the fly.
- Overnight add-on: the Four Pass Loop starts from this same trail and is one of the most permit-competitive backpacking trips in Colorado. If that's the goal, plan months ahead.
Common questions
- Do I need a reservation to hike to Crater Lake?
- During the managed season (roughly mid-May through late October), yes — you'll need either a shuttle ticket from Aspen Highlands or a timed parking reservation for the Maroon Lake lot, both through the official reservation system. Both routinely sell out, especially during fall color, so book well ahead.
- How long does the Crater Lake hike take?
- Plan on about 2.5 hours round trip at a relaxed pace with photo stops, covering roughly 5.8 km out-and-back with around 200 m of gain. Fit hikers acclimated to altitude can do it in under two hours, but most people aren't acclimated.
- Is the Crater Lake trail good for kids?
- The first kilometer to and around Maroon Lake is paved and family-friendly, and capable kids who are used to hiking can usually handle the full route to Crater Lake. Past Maroon Lake the tread gets rocky with root steps and a couple of short scrambles, so it's not stroller territory.
- How early should I start in summer to avoid storms?
- Be on the trail by 7 a.m. in July and August. Afternoon thunderstorms build almost daily and you do not want to be on exposed sections of the upper trail when one rolls in.
- When do the aspens peak at Maroon Bells?
- Generally the last week of September into the first few days of October, though it shifts a week either direction depending on the year. That window is the busiest of the season — expect a packed shuttle and slow foot traffic on the trail.
- Can I swim in Crater Lake?
- It's not a swimming destination — the lake is small, shallow, cold, and surrounded by fragile shoreline that gets trampled easily. Most people stop at the established viewpoints rather than dropping all the way to the water.
- Do I need microspikes or trekking poles?
- Microspikes are worth carrying in early June when snowfields linger on the upper section, and again after the first October storms. Trekking poles aren't required but help on the loose rock and root steps in the middle of the trail, especially on the descent.
