Caribou Ranch was a recording studio built by producer James William Guercio in 1972 in a converted barn on ranch property in the Rocky Mountains near Nederland, Colorado, on the road that leads to the ghost town of Caribou. The studio was in operation until it was damaged in a fire in March 1985.
Guercio purchased Caribou Ranch, more than 4,000 acres (16 km2) in the Rocky Mountains, in 1971.
In 1972, Joe Walsh and Bill Szymczyk were starting work on Barnstorm at Walsh's home in Colorado when a mixer blew out on the first day. Szymczyk knew Guercio was building a new studio, visited the in-progress barn conversion at the ranch, and concluded that it would work for their project. They used the new studio to finish Barnstorm. Szymczyk next made Rick Derringer's All American Boy and the hit single "Rock & Roll, Hoochie Koo" there.
Elton John's 1974 album Caribou was recorded at and named after the studio. (John also recorded the single "Lucy in the Sky with Diamonds" there, as well as his next two albums, Captain Fantastic and the Brown Dirt Cowboy and Rock of the Westies.)
The group Chicago, managed by Guercio, recorded five studio albums there; Chicago VI, Chicago VII, Chicago VIII, Chicago X, and Chicago XI. Earth, Wind, & Fire recorded two of their albums there as well; 1974's Open Our Eyes (Produced by Maurice White & Joe Wissert) and the 1975 Grammy winning That's the Way of the World (Produced by White and Charles Stepney). By the mid 1980's, it was rumored that business was slow for the studio and their rates had dropped. That made it cost-effective for the Colorado-based band "First Born" to record their debut there in late October 1984. In March 1985 Amy Grant, who had recorded 4 albums there, including her platinum-certified mainstream breakthrough album Unguarded, was about to fly out of Nashville to return to Caribou for work on her next project when word reached her that the studio was in flames.
The studio complex was shut down and never used again after the 1985 fire destroyed the control room and caused about US$3 million in damage. According to the Nederland Fire Chief, while the fire department was doing overhaul on the fire to make sure it was out, several Gold Record plaques awarded to Guercio's group Chicago that were hanging on the wall of the studio, were damaged by a chain saw.
Guercio's interests had shifted away from music. In 1996 and 2001 transactions he sold 2,180 acres (8.8 km2) of the ranch to Boulder County and the City of Boulder, and another 1,489 acres (6.03 km2) were placed under conservation easement. A housing development by Guercio's Caribou Companies takes up much of the remainder.
In a 2008 interview with Denver PBS series Studio 12 ("Caribou Ranch", aired February 13, 2008), Guercio said the studio's control room was rebuilt after the fire. (For purposes of clarification, only the roof and structure of the control room were repaired; the actual room itself was not. The part of the studio where the musicians performed remained intact.) Guercio added, however, that he has no plans to reopen the recording facility for business.
The remaining 1,600-acre property was sold to Indian Peaks Holdings LLC for $32.5 million. 
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Over 150 artists recorded at Caribou.
- Al Di Meola
- Ali Thomson
- Amy Grant, starting with Age to Age and ending with Unguarded
- Billy Joe Shaver
- Billy Joel
- Blood, Sweat and Tears
- Bruce Roberts
- Carl Wilson
- Carole King
- Chicago, starting with Chicago VI and ending with Chicago XI
- Chick Corea
- Dan Fogelberg
- David Cassidy
- David Sancious
- Deep Purple
- Earth, Wind & Fire, Open Our Eyes and That's the Way of the World
- Eddie Rabbitt
- Elton John, notably the 1974 Caribou album
- Emerson, Lake & Palmer
- First Born
- Frank Zappa
- George Duke
- Idle Tears
- Jac Murphy
- Jan Hammer
- Jeff Beck
- Jerry Goodman
- Jerry Lee Lewis
- Joe Walsh
- John Denver
- John Lennon (contributed to Elton John recording sessions)
- Kinesis August 1980 (also Horns on Ali Thompson project)
- Kris Kristofferson
- Len Trout
- Michael Jackson
- Michael Murphey
- Mike Brewer
- Nitty Gritty Dirt Band
- Ozark Mountain Daredevils
- Pat McJimsey, I Dig Girls album
- Peter Frampton
- Phil Collins
- Rainbow Canyon
- Return to Forever for their albums Romantic Warrior and Musicmagic
- Rick Derringer
- Robert Lamm
- Rod Stewart
- Sam The Band
- Sheena Easton
- Shooting Star
- Sons of Champlin
- Souther Hillman Furay Band
- Steely Dan
- Stephen Stills
- Stevie Nicks
- Switch on their Reaching for Tomorrow album
- The Beach Boys
- Tom Petty
- Tom Scott and The L.A. Express
- Tony Orlando
- Tony Williams
- Waylon Jennings
- Zach Heckendorf[self-published source?]
- Mark Brown (2008-01-25). "Reliving the ranch". Rocky Mountain News. Archived from the original on 2012-09-30.
- Alicia Wallace (2013-07-22). "Caribou Ranch property, historic recording studio near Nederland up for sale". Daily Camera. Retrieved 2013-07-22.
- Sound on Sound magazine (2004). Bill Szymczyk. Retrieved January 25, 2006
- Mark Brown (2008-09-22). "'Best years' of Earth Wind & Fire". Archived from the original on 2012-09-30.
- Weiser, Scott (21 April 2001). "Homes on the range: Mountain development gets a free pass". Boulder Weekly. Archived from the original on 2006-11-12.
- Pro Sound News 31 (7): 14. July 2009.
- "Fabled Caribou Ranch above Nederland sells for $32.5 million".
- Alicia Wallace (2013-08-03). "Caribou Ranch: Music central part of Nederland property's future, owners say". Daily Camera. Retrieved 2013-08-03.
- "The Legend of Caribou". Rocky Mountain News. 2008-01-25. Retrieved 2013-06-19.
- Penny Parker (2009-10-08). "Pang relives Caribou times". Archived from the original on 2012-09-30.
- Boulder County Open Space and Recreation: Caribou Ranch
- The Legend of Caribou[dead link] Articles, video, and photo slide shows about the ranch and touring the ranch
- "Inside Caribou Ranch". Rocky Mountain News. Retrieved 2012-09-30.
- Caribou Tales