Rocky Mountain Construction (RMC), is a manufacturing and construction company based in Hayden, Idaho, United States. The company is best known for its I-Box track and Topper Track for wooden roller coasters. Established in 2001, the company was founded by Fred Grubb and Suanne Dedmon. The company has built over 20 roller coasters. In 2023, amusement ride manufacturer Larson International merged with Rocky Mountain Construction. In 2001, Rocky Mountain Construction was established by Fred Grubb and Suanne Dedmon. Fred Grubb previously had experience in the construction industry having worked on custom homes and zoo exhibits. The company has worked on several projects including the construction of roller coasters, water parks, steel buildings, miniature golf courses and go kart tracks. More information...
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