Barrel racing at the Rimrock Rodeo, Fruita, Colorado.
Whether you stop by for the rodeo only or time your visit to the Colorado National Monument for a Tuesday and finish a day of natural exploration with something a bit more intense, I'd definitely recommend spending the evening at the Rimrock Rodeo. If nothing else, you will get a nice dose of the American West served to you on a plater.
June - August, 4:30 - 9:30. Professional rodeo 7:30 - 9:30.