Mesa County Fair Board President Kyle Carstens says all acts are verified and reputable through the fair association.
People for the Ethical Treatment of Animals or PETA sent a letter to Mesa County Fair organizers earlier this month citing safety and animal welfare concerns on its performance.
The Daily Sentinel reports the letter referenced an incident at a New York fair last year where a grizzly bear injured a handler during an act by the same owner, Dexter Osborn.
PETA says the incident prompted it to start a campaign against Osborn.
Osborn did not answer phone calls or emails seeking comment on Tuesday.