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Lost Forest Rules & Regulations

A family enjoys hiking at the Lost Forest

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

Tucked in among the trees and rocks at Elk Camp on Snowmass is the Lost Forest. There are ponds to fish in, an alpine coaster, zip lines, a climbing wall, a ball track, biking trails, creeks to hike along, places to enjoy nature alone or in groups, a disc golf course and passionate guides to help you find your next adventure.


Please review our Lost Forest Rules & Regulations below before purchasing your Lost Forest admission.

Rules And Regulations

Breathtaker Coaster

Driver requirements:

- Between 54 inches and 84 inches tall (137 to 213 centimeters)
- Must be physically able to maintain seated position and use safety restraints
- Capable of understanding and obeying all verbal and written instructions
- Capable of visually identifying sled in front of them to maintain safe following distance
- Able to operate brake levers to control the speed of the sled
- Driver must be 16 years or older to pilot sled with passenger


Passenger requirements:

- At least 38 inches (97 centimeters)
- Must be shorter than the driver
- Capable of holding onto front handle while sled is in motion
- Total passenger (max of 2) weight for sled cannot exceed 375 pounds (170 kilograms) in dry conditions, 330 pounds (150 kilograms) in wet conditions

Participant rules:

- Both Driver and Passenger must have a Breathtaker Alpine Coaster ticket to ride
- Must sign a release of liability waiver
- All loose clothing and hair below shoulder length shall be secured prior to starting the ride
- No food or gum is allowed on the ride
- Participants must remain seated at all times and keep their arms and legs inside the sled for the duration of the ride
- Driver must maintain at least 80 feet (24 meters) in dry conditions and 160 feet (48 meters) in wet conditions between their sled and the sled in front of them on the track
- Stopping on the track is only permitted in the event of an emergency
- No backpacks or bags allowed on the ride

Health requirements:

- Guests who are under the influence of drugs or alcohol of any kind (including marijuana) may not participate in this activity
- Guests with the following medical conditions may not participate in this activity:

  • Pregnant or think they may be pregnant
  • Heart condition
  • Seizure condition
  • History of back or neck injury
  • Any other medical condition that prevents guests from following the safety rules and guidelines

Two young boys on the alpine coaster, smiling out of excitement at Snowmass Lost Forest

Climbing Wall

Participant requirements:

- At least 36 inches (91 centimeters) tall
- Between 22 and 330 pounds (10 to 150 kilograms)
- Capable of understanding and obeying all verbal instructions from staff

Participant rules:

- Must wear closed-toe shoes to partake in the activity
- Must sign a release of liability waiver
- No food or gum is allowed
- No lead climbing is allowed on the wall

Health requirements:

- Guests who are under the influence of drugs or alcohol of any kind (including marijuana) may not participate in this activity
- Guests with the following medical conditions may not participate in this activity:

  • Pregnant or think they may be pregnant
  • Heart condition
  • Seizure condition
  • History of back or neck or spinal injury
  • Any other medical condition that prevents guests from following the safety rules and guidelines
Child on climbing wall at Lost Forest, secured by belay device

Treeline Trial

Participant requirements:

- Children 11 and under must be accompanied by someone that is at least 16 years old. The ratio is 2 children (11 and under) to 1 adult (age 16+)
- Between 48 inches and 78 inches tall (122 to 198 centimeters) and able to grasp a cable overhead with two hands at a height 66 inches

- Weigh between 50 pounds and 250 pounds (22 and 113 kilograms)
- Able to ambulate under one's own power or with assistance of a companion on uneven terrain for distances of 0.25 miles (0.4 kilometers) at a time
- Capable of understanding and obeying all verbal and written instructions
- Able to ambulate on a 3/8 inch (1 centimeter) wire or similar obstacle alone or with the assistance of a companion
- Complete the required orientation session aka Ground School
- Proper fit and use of personal protective equipment
- Be able to self-arrest and self-rescue (regain position on element after falling off)

Participant rules:

- Must wear closed-toe shoes to partake in the activity
- Must sign a release of liability waiver
- No food or gum is allowed on the course
- All personal effects must be firmly secured on person
- Must wear ALL required personal protective equipment in accordance with manufacture's recommendations
- Capable of successfully passing ground school instruction provided
- No backpacks or bags are allowed to be carried on course
- Activity only available during established operating hours with the presence of qualified staff

Health requirements:

- Guests who are under the influence of drugs or alcohol of any kind (including marijuana) may not participate in this activity
- Guests with the following medical conditions may not participate in this activity:

  • Pregnant or think they may be pregnant
  • Heart condition
  • Seizure condition
  • History of back or neck injury

Important information:

Any other medical condition that prevents guests from following the safety rules and guidelines.

Treeline reservations meet at the base of the gondola at 10:30am, 11am, 11:30am, 12pm, 12:30pm and 1pm. Guests must select the date and time for their orientation at the time of purchase. Guests may check in early to experience other Lost Forest activities before their Treeline experience.

There is a maximum of 10 participants per orientation session (10 participants at 10am, 9 participants for every other session). The last opportunity to begin a course is 4pm for the easiest two courses and 3:45pm for three more difficult courses.


Returning guests also need to select the date and time to begin their session at the time of purchase, but only need to go through orientation once per summer.


Young girl balances on tree bridge in Snowmass Lost Forest

Canopy Run

Participant requirements:

- 16+ years old or accompanied by an adult
- Between 48 inches and 78 inches tall (122 to 198 centimeters)
- Weigh between 70 and 250 pounds (32 to 113 kilograms)
- Able to ambulate under one's own power or with assistance of a companion on uneven terrain for distances of 0.5 miles (0.8 kilometers) at a time
- Able to raise arms above head and grasp cable to brake while riding zipline
- Capable of understanding and obeying all verbal and written instructions
- Pass Ground School
- Proper fit and use of personal protective equipment

Participant rules:

- Must wear closed-toe shoes to partake in the activity
- Must sign a release of liability waiver
- No food or gum is allowed
- All personal effects must be firmly secured on person
- Must wear ALL required personal protective equipment in accordance with manufacturer's recommendations
- No backpacks or bags are allowed to be carried on course
- Activity only available during established operating hours with the presence of qualified staff

Health requirements:

- Guests who are under the influence of drugs or alcohol of any kind (including marijuana) may not participate in this activity
- Guests with the following medical conditions may not participate in this activity:

  • Pregnant or think they may be pregnant
  • Heart condition
  • Seizure condition
  • History of back or neck injury
  • Any other medical condition that prevents guests from following the posted rules and staff instructions during the activity

Important information:

- Entire tour may take between 2.5 and 3 hours to complete
- Participants will be accompanied by two guides across 2 skybridges, 7 ziplines and 4 rappels to complete the course
- Maximum height of ground is approximately 90 feet (27 meters). Final rappel is from an approximate height of 90 feet (27 meters)
- Bathrooms only available at the beginning and end of the tour, please plan accordingly


Zipliner takes off from platform in the trees at Snowmass Lost Forest
Cancellation Policy
Completely unused Lost Forest Base, or Sightseeing tickets are refundable. Lost Forest Canopy, Treeline, and Sunset Tuesday Tickets require 48-hour cancellation notice. No refunds due to weather if operations remain open. No partial refunds.