Colorado church bus accident in Gunnison County: Another tour bus accident has caused serious injury in Colorado. Eight people were seriously injured when a tour bus carrying a church group crashed in Colorado on Saturday, December 18, 2010. 38 other passengers suffered varying degrees of injury in the bus accident. people on-board at the time of the crash, which occurred about 8 p.m. The tour bus was transporting a church group from Denton, Texas, to Crested Butte, Colorado, when the bus accident occurred. Our tour bus accident attorneys are investigating.