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Lost Forest

Located conveniently on Snowmass, Lost Forest is the epicenter for summer exploration for any age. A zipline, ropes courses, the Breathtaker Alpine Coaster, miles of hiking trails, a high-mountain fishing pond, disc golf, paintballing, and a climbing wall provide thrills and family fun for all ages.

Exploring the Lost Forest at Aspen Snowmass in summer

Summer 2024 Operating Dates

Open: Daily: June 21–Sept. 2; Weekends (Fri.–Sun.) Sept. 6-8, 13-15, 20-22, 27-29

Close: Sept. 29

Based out of Elk Camp on Snowmass, Lost Forest is immersive yet accessible, inviting you to lean into your sense of wonder by spending time in nature. Picture the perfect summer playground with shaded, winding trails connecting a magnitude of mid-mountain activities. Walk off the gondola and into an adventure on an alpine coaster, biking trails, a ropes course, a zipline, a climbing wall, fishing ponds, hiking trails, and a disc golf course.

Here, surrounded by wild beauty, you can enjoy nature with the whole family—welcome to Lost Forest.

Activities for the Thrill Seekers

For families looking for thrilling summer adventures, the Treeline Trial Challenge Course, Breathtaker Alpine Coaster, Canopy Run Zipline, and the Climbing wall offer gravity defying adventure for all.
Some of these activities require a minimum and maximum weight and height to participate. Please view our Lost Forest Rules and Regulations to decide what is best for you and your group. If a group has individuals who do not meet these requirements, Lost Forest has plenty of other outdoor adventures everyone can participate in.

Activities for the Whole Family

For families with young kids or groups looking for a more relaxing day, we offer Aerial Approach Disc Golf, Elevated Journey Hiking Trails, Trout Hook Fishing Pond, and Sightseeing and Gondola Rides.

More For The Family

We have activities at Lost forest even for our smallest adventurers

Lost Forest Ball track

Open during Lost Forest hours | Included with Lost Forest Base Ticket (with purchase of ball)

Our newest feature geared towards our smallest adventurers, the 140-foot-long dual wooden track allows racers to follow their ball through features such as the xylophone, maze and cow bells to the finish line.

Purchase your souvenir ball from Lost Forest Headquarters or inside the Elk Camp Restaurant for $10.

Robin's Nest

Open during Lost Forest hours | Included with Lost Forest Base Ticket

Designed to allow our climbers and adventurers who are too small for the challenge course to play, climb and jump, the 4 story fully enclosed Robin’s Nest allows children from 2 – 10 the chance to enjoy the Lost Forest.

Located adjacent to the Treeline Trial Challenge Course, included free of additional charge, with purchase of Lost Forest Base Ticket.

Choose Your Adventure

Take it all in on your own with the Base Ticket or opt for a guided exploration with the Treeline Ticket or Canopy Ticket—ideal for adults seeking a unique day filled with Lost Forest discovery.

Please review our Lost Forest Rules & Regulations before purchasing your Lost Forest admission. There's no place like Lost Forest.

Base Ticket

$78 Per Day (Ages 13 & Up) | $60 Per Day (Ages 12 & Under) Lost Forest Base Ticket includes lift access to Elk Camp gondola and chair, the Breathtaker Alpine Coaster, Rugged Ascent Climbing Wall, Robin's Nest, Aerial Approach Disc Golf, Trout Hook Fishing Pond, and Elevated Journeys Hiking Trails. Times are 10:30am–4pm (activity closing times vary). Participants must be at least 36 inches tall and weigh between 22-330lb for the climbing wall and at least 38 inches for the coaster. Maximum coaster weight is 375lb in dry conditions and 330lb in wet conditions (for one or two people).
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Treeline Ticket

$112 Per Day (Ages 13 & Up) | $83 Per Day (Ages 8-12) Open to families and thrill-seekers, the Treeline Trial Challenge Course, combines rappels, ziplines, bridges, and ladders for a thrilling obstacle course in the trees. Choose from five different courses of varying difficulty: Lily Pads (easiest), Snakes & Ladders, Eagle Walk, Spider Web and Islands in the Sky (most difficult). Lost Forest Treeline Ticket includes access to Elk Camp gondola and chair, Treeline Trial Challenge Course, and all activities included in Lost Forest Base. Participants must be between 48-78 inches tall, weighing between 50–250lbs, and able to grasp a cable overhead with both hands, reaching at least 66 inches. Check in at the base of the Elk Camp Gondola.
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Canopy Tour Ticket

Canopy Run Zipline Tour $244 | 3-hours Soar above Snowmass with multiple ziplines, sky bridges, rappels, and platforms mounted in the trees themselves for a thrilling adventure through the canopy! Guests must weigh between 70-250lbs and be between 48-78 inches tall, as well as 16+ years old or accompanied by an adult. Maximum of 6 people per tour. Reservations are required and are nonrefundable within 48 hours of tour start time. Check in at the base of the Elk Camp gondola.
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Compare Lost Forest Options

Lost Forest Base Lost Forest Treeline Lost Forest Canopy
Gondola/Lift Access✔️
Breathtaker Alpine Coaster✔️✔️
Rugged Ascent Climbing Wall✔️
Treeline Trial Challenge Course✔️
3-Hour Canopy Run Zipline Tour✔️

Elevated Journey Hiking Trails, Aerial Approach Disc Golf (with own equipment), Trout Hook Fishing Pond (with own equipment), Robins Nest, and the Ball Track (ball purchase required) are free activities included with your purchase of any Lost Forest Activity.

Cancellation Policy
Completely unused Snowmass Bike Park, Sightseeing, and Lost Forest Base tickets are refundable. Lost Forest Canopy, Treeline, and Bonus Night Tickets require 48-hour cancellation notice. No refunds due to weather if operations remain open. No partial refunds.

Weather Policy
Summer weather in the Rocky Mountains is unpredictable and out of our control. As a result, we do not offer refunds due to weather impacts on our operation. Please check the forecast while planning your activities.
Downhill biker kicks up red dirt as he turns around a bank. Yellow Flowers in foreground at Aspen Snowmass.

Snowmass Bike Park

With 25 miles of purpose-built, diverse trails—from beginner-friendly and flowing singletrack to adrenaline-inducing downhill—the Snowmass Bike Park is the place to find your flow no matter your skill level.

Activities Status

  • Open
  • Hike - Easiest
  • Hike - More Difficult
  • Hike - Most Difficult
  • Hike - Expert Only