Overview
Hanging Lake is one of those rare places that genuinely stops people in their tracks. A turquoise travertine lake sits on a cliff ledge 1,200 feet above the floor of Glenwood Canyon in White River National Forest, fed by waterfalls that cascade over moss-covered limestone formations. The water is so clear you can see the submerged logs and travertine deposits on the bottom. A spur trail leads to Spouting Rock, where water shoots horizontally out of a hole in the cliff face, a geological oddity that looks like something from a fantasy novel. Glenwood Canyon sits between Glenwood Springs and Vail, placing Hanging Lake within easy range of both the I-70 corridor and the broader White River National Forest trail network. For a different White River hiking experience closer to Vail, Booth Falls in East Vail is a permit-free waterfall hike with similar short-distance-big-payoff character.
The hike itself is only 1.5 miles each way, but those 1.5 miles gain 1,200 feet of elevation. That's a steep grade by any standard. The trail climbs relentlessly from the canyon floor through a rocky, switch-backing corridor with sections of log steps, rock stairs, and boardwalks. It's not technical, but it demands steady effort and good footing. Plan on 2 to 3 hours for the round trip, depending on your pace and how long you spend at the lake.
A timed entry permit is required for every visitor, every day of the year. This is non-negotiable, and it's the most important thing to know before planning this hike.
The Route
Miles 0 to 0.3: Canyon floor. The trail starts from the Hanging Lake Rest Area parking lot, accessed directly from I-70 at Exit 125 in Glenwood Canyon. You'll cross Dead Horse Creek on a bridge and begin walking along the canyon floor through a mix of cottonwood, box elder, and scrub oak. The grade is gentle here. Enjoy it while it lasts.
Miles 0.3 to 1.0: The climb begins. The trail turns uphill and doesn't let up. You'll gain most of the 1,200 feet of elevation in this section. The path follows Dead Horse Creek through a narrow side canyon, crossing the creek several times on footbridges. The terrain is rocky and uneven, with constructed stone steps and log staircases in the steeper sections. Handrails and boardwalks have been installed in areas prone to erosion. The canyon walls close in around you, and the forest transitions to Douglas fir and blue spruce. Waterfalls and small cascades appear along the creek as you climb.
Miles 1.0 to 1.5: Final push and the lake. The last half mile maintains the steep grade but begins to level out as you approach the lake. You'll cross a final boardwalk section, and then the lake appears. The first view is always a surprise: a pool of vivid turquoise water rimmed by travertine (calcium carbonate) deposits, with waterfalls dropping into the lake from above. Ferns, moss, and wild grasses cling to the travertine shelves surrounding the water.
Spouting Rock (spur trail). From the lake, a short spur trail (about 0.1 miles) leads up to Spouting Rock. Here, water emerges from the cliff face through a hole in the limestone and shoots outward in a horizontal arc before dropping to the rocks below. The geology behind this: water percolates through the limestone above, hits an impermeable layer, and is forced out through the cliff. It's one of the most unusual water features in Colorado.
Return: Retrace your steps. The descent is easier on your lungs but harder on your knees. Take your time on the rock steps, especially if they're wet.
Permit Requirements
A timed entry permit is required for every person, every day. No exceptions. The permit system was implemented to protect the fragile travertine formations and surrounding ecosystem, which were being severely damaged by unrestricted visitation.
- Cost: $12 per person (children 2 and under are free)
- Booking: Permits are sold through VisitGlenwood.com. You select a 15-minute arrival window when you book.
- Availability: Permits for summer weekends sell out weeks in advance. Midweek slots are easier to get. Book as early as possible.
- Enforcement: Rangers check permits at the trailhead. If you show up without one, you will not be allowed on the trail. There is no option to purchase a permit at the trailhead.
- Cancellation: Permits can be cancelled for a partial refund if done at least 24 hours in advance.
The permit system has been a clear success. Before the limits went into effect, Hanging Lake was receiving over 1,000 visitors per day on peak weekends, and the travertine formations were being damaged by people wading into the lake, climbing on the formations, and going off-trail. Visitor numbers are now capped at a fraction of that, and the site has recovered significantly.
Rules at the Lake
The Forest Service takes protection of Hanging Lake seriously, and the rules reflect that.
- No swimming, wading, or touching the water. The travertine formations are living geological structures that grow only a fraction of an inch per year. Contact with the water disrupts the mineral deposition process.
- No dogs. Dogs are prohibited on the entire trail.
- No drones. The canyon is a no-fly zone.
- Stay on the boardwalk and designated viewing areas. Do not climb on the travertine formations or leave the trail.
- Pack out all trash. Follow Leave No Trace principles. There are no trash cans on the trail.
- No feeding wildlife. The area supports a healthy population of wildlife, including rainbow trout in the lake, that depend on an undisturbed environment.
These rules are enforced with fines. Multiple visitors have been cited and fined (some over $1,000) for wading into the lake or damaging the formations. Don't be that person.
When to Hike
May through October is the standard hiking season, though the trail is technically open year-round (with a permit).
May and June: The creek and waterfalls are at peak volume from snowmelt. The lake is at its most dramatic when the falls are running hard. Mornings can be cool in the canyon, and the trail may be slippery in shaded sections. This is an excellent time to visit if you can handle the wet conditions.
July and August: The busiest months. Daytime temperatures in Glenwood Canyon reach the 90s, and the climb can be hot, especially on the sun-exposed sections. Start with an early morning time slot (before 9 AM) to avoid the heat. The waterfalls begin to slow as snowmelt decreases.
September and October: Crowds thin, temperatures cool, and fall color appears in the cottonwoods and aspens along the canyon. This is arguably the best time for photography. The creek volume is lower, but the lake retains its color.
Winter: The trail can be icy and snow-covered, making the steep sections significantly more challenging. Microspikes or traction devices are strongly recommended. Permits are still required but much easier to get. Winter conditions transform the waterfalls into ice formations, which can be spectacular.
What to Bring
- Water: At least 1 liter per person. The trail is short but steep, and the canyon can be hot in summer. There is no water source on the trail that's safe to drink untreated.
- Sturdy footwear: This is not a trail for sandals or flat-soled shoes. The surface is rocky, with constructed stone and log steps that can be slippery when wet. Hiking boots or trail shoes with good tread are the right choice.
- Layers: The canyon floor can be significantly cooler than the rim, especially in the morning. A light jacket is useful even in summer.
- Trekking poles: Optional but helpful for the steep descent, especially if you have knee issues.
- Camera: The lake and Spouting Rock are extraordinarily photogenic. Morning light produces the best color in the water.
- Snacks: A small snack for the top is fine, but eat at the designated rest areas, not on the travertine formations. Pack out all wrappers and crumbs.
Common Mistakes
No permit. This is the number one issue. You cannot hike Hanging Lake without a timed entry permit. Do not drive to the trailhead hoping to figure it out. Book in advance.
Underestimating the climb. The 1.5-mile distance looks easy on paper. It's not. The 1,200 feet of elevation gain in that short distance makes this a genuine workout, especially at 6,100 to 7,300 feet of elevation. People accustomed to flat-ground walking often struggle on this trail. Take breaks, go at your own pace, and don't be embarrassed about stopping to catch your breath.
Wearing the wrong shoes. The rock steps and creek crossings demand real traction. Every summer, hikers in flip-flops or smooth-soled shoes slip and injure themselves on this trail. Wear appropriate footwear.
Touching the water. It's tempting. The lake is beautiful and the water looks inviting. Don't do it. The travertine is fragile, the fines are steep, and rangers often watch from concealed positions near the lake.
Getting There
Hanging Lake is in Glenwood Canyon, along I-70 between Glenwood Springs and Vail. The trailhead is at the Hanging Lake Rest Area, accessed from I-70 at Exit 125 (eastbound) or by following signs from Exit 121 (westbound). Note: the exit is only directly accessible from the eastbound lanes. If you're coming from Vail (traveling westbound), you'll need to take Exit 121 and follow the frontage road to the rest area.
From Glenwood Springs, the trailhead is about 10 miles east on I-70 (roughly 12 minutes). From Vail, it's about 60 miles west (roughly 55 minutes). From Denver, it's about 160 miles (2 hours 15 minutes) via I-70.
The parking lot is included with your permit, but spaces are limited. Arrive during your designated time window. If you're early, you may need to wait.
Beyond the Lake
Glenwood Canyon offers more than just Hanging Lake. The Glenwood Canyon Recreation Trail is a paved 16-mile bike path that runs along the Colorado River through the canyon, connecting Glenwood Springs to Dotsero. Grizzly Creek Trail, accessed from a rest area a few miles east of Hanging Lake, is a less-crowded hike that climbs to views above the canyon.
In Glenwood Springs itself, the Glenwood Hot Springs Pool (the world's largest hot springs pool) and Iron Mountain Hot Springs provide a perfect post-hike soak. The town also serves as a gateway to the Flat Tops Wilderness and the trails south toward Marble and the Crystal River valley.
Hanging Lake is Colorado at its most improbable: a turquoise pool hanging on a cliff in a desert canyon, fed by waterfalls that emerge from solid rock. The permit system means you'll share it with fewer people than you'd expect for something this famous. Book early, bring good shoes, and earn every foot of that 1,200-foot climb. For hikers coming from Denver, the 160-mile drive through Glenwood Canyon on I-70 is itself a scenic experience worth savoring. Mystic Island Lake near Silverthorne offers a full-day no-permit hike in the Eagles Nest Wilderness for visitors who want to combine Hanging Lake with a longer trail the next day. The national forest versus national park article is useful context since Hanging Lake is managed by the Forest Service under the White River National Forest, while Glenwood Canyon Recreation Area sits within Bureau of Reclamation jurisdiction, two different federal agencies sharing the same canyon. For visitors planning an overnight stay in the broader White River area, Conundrum Hot Springs near Aspen is the most memorable backcountry destination accessible from the same I-70 corridor, and how to get a national forest camping permit explains the Recreation.gov system used for Hanging Lake and similar regulated destinations. The best hikes near Denver guide covers the full range of White River National Forest destinations accessible from the Front Range.