A Castle Rock school bus driver abandoned 40 elementary schoolers Monday evening at a random intersection miles away from their homes, parents and school district officials said. Parents told 9NEWS that the driver, who they claim was a substitute for the route that day, forced their Clear Sky Elementary School students off the bus near a cemetery at East Wolfensberger Road and Auburn Drive. Douglas County School District officials would not confirm if the driver was a substitute. In a video posted by 9NEWS, students said the trouble started before they even left the parking lot.