Glenwood Caverns Adventure Park

Previously known as Glenwood Caverns (1999-2002)
Interactive map of Glenwood Caverns Adventure Park
Location	Glenwood Springs, Colorado, United States
Coordinates	39°33′38″N 107°19′13″W / 39.56056°N 107.32028°W / 39.56056; -107.32028
Status	Operating
Opened	1999
Owner	Steve and Jeanne Beckley
Slogan	America's only mountain-top theme park!
Operating season	Year-round
Attractions
Total	10 (as of 2026)
Roller coasters	3
Website	https://www.glenwoodcaverns.com/

Glenwood Caverns Adventure Park is a summer-themed adventure park located near Glenwood Springs, Colorado. It is located approximately 160 miles (260 km) west of Denver at an altitude of 7,132 ft (2,174 m) and is within the Mountain Standard Time Zone (GMT+7).^[1]

In December 2023, Secretary of the Interior Deb Haaland designated Glenwood Caverns and Iron Mountain Hot Springs as a national landmark.^[2][3]

While hiking on Iron Mountain in the late 1800s, Charles W. Darrow followed a whistling sound created by natural air currents and discovered the entrance to a cave system. In 1895, Darrow opened the caves to the public.^[4] Originally only accessible by foot or horseback, Darrow installed electric lights in the cave with the help of the city's hydro-electric plant in 1887 (becoming one of the first caves to do so). In 1917, coinciding with the onset of World War I, the caves were closed to the public. ^[5]

By 1998, Steve and Jeanne Beckley obtained the land on which the cave is located. That year saw the beginning of the Fairy Caves Project, a volunteer organization coordinating caver access as well as science and conservation projects utilizing the land.^[6][7] This project allowed for the reopening of the cave to the public in 1999 after one year of restoration work. The caverns were accessible by bus via a station next to the Hotel Colorado. In 2002, the park was expanded, adding a pulse gondola, a visitor center with a restaurant, an aerial tramway, a sluice box, and a gift shop.^[8][9][10]

As wait time for cave tours increased, attractions were added to the park to provide patrons with entertainment while waiting. From 2005 to 2010, various attractions were added, such as a 4-D theater, an alpine coaster, a zip ride, a swing-style attraction, and a climbing wall.^[11][10] In 2010, the Giant Canyon Swing, a Screamin' Swing ride, was added. Around the same time, the zip ride was relocated, sharing a joint tower structure with a bungee jump.^[12]

In 2012, the park undertook its largest expansion since 2005 with the addition of three rides. These included a Zierer children’s roller coaster and an SBF-Visa Ferris wheel, both relocated from Wild Zone Adventures in Canada. The flagship addition was the Cliffhanger roller coaster, relocated from the former Celebration City amusement park in Branson, Missouri. The coaster opened in June 2012. As of 2026, Cliffhanger is the highest elevation roller coaster in the United States, operating at an elevation of 7,160 feet (2,180 m) above sea level.^[13][14]

In 2013, the park expanded the upper portion of its cave system. As part of this project, the original cave tour was divided into two separate tours, both being approximately 40 minutes. That same year, the aerial tramway was expanded by adding two additional pulse sequences, bringing the total to six pulses and eighteen cabins. ^{[citation needed]}

In 2014, the park installed the Glenwood Canyon Flyer as an alternative to the Giant Canyon Swing. The ride was later featured on the television program Thrill Factor in 2015, in the episode "Kari Has No Sense".^[15]

In early 2017, the park announced the addition of the Haunted Mine Drop, a drop tower that descends underground and features themed elements as well as a 110-foot (34 m) vertical drop. The ride opened in the summer of 2017. The Haunted Mine Drop was renamed as Crystal Tower in 2023.^[16]

On the evening of September 5, 2021, six-year-old Wongel Estifanos died while riding the Haunted Mine Drop attraction after being separated from her seat and falling 10 ft (3.0 m). Investigators determined that Estifanos had been seated on top of the safety restraint rather than secured beneath it. A forensic pathologist identified the cause of death as blunt-force trauma. An official investigation by the Colorado Division of Oil and Public Safety cited inadequate procedures and insufficient training of two ride operators, who failed to ensure that Estifanos was properly restrained before the ride began.^[18][19] The Estifanos family was represented by attorney Dan Caplis in a subsequent civil lawsuit against the park, which ended in a landmark jury verdict awarding $205 million in damages for the death of Wongel Estifanos.^[20] Following the fatal accident in 2021, Glenwood Caverns Adventure Park temporarily closed.^[21] The Haunted Mine Drop remained closed until 2023, when it reopened as Crystal Tower.

In 2025, Glenwood Caverns Holding LLC, the park's parent company; Soaring Eagle, the designer of the ride; and the two operators of the ride were found liable for the death of Wongel Estifanos. ^[22] On February 10, 2026 Glenwood Caverns filed for Chapter 11 bankruptcy on account of the $116 million dollar wrongful death judgement made in 2025. Court filings indicate the park carries roughly $5 million in liability insurance.^[23]

Several injuries have been reported on the Alpine Coaster attraction. In 2007, a parent and child were hospitalized after being thrown from the ride into a fence. In 2010, a 10-year-old child was ejected from the coaster and landed on a pile of rocks, sustaining facial injuries. In 2011, a woman suffered a broken back after the car she was riding in failed to brake for a series of stalled cars on the track. A lawsuit filed in connection with the incident was later dismissed.^[24]

On October 28, 2023, prior to the park opening for the day, a 20-year-old Colorado man identified as Diego Barajas Medina was found dead inside the park from an apparent suicide. Medina was wearing tactical gear and was armed with improvised explosive devices and two privately made firearms, including a semi-automatic rifle and a handgun. Officials with the Garfield County Sheriff's Office stated that the weapons and equipment could have enabled a mass-casualty attack. A note discovered near Medina’s body, written on the wall of a women’s restroom stall, read, "I am not a killer. I just wanted to get into the caves."^[25]

• Glenwood Caverns website Archived 2006-08-03 at the Wayback Machine