Bus crash on Utah 12

So sad to read about this - I read an article that quoted someone who witnessed the accident, that the bus had crept over one way, then it looked like the driver over-corrected and over it went in the opposite lane.

We drove through that same area going to Bryce Canyon NP last week and were stunned by how many tour busses were at the park, with LOTS of foreign visitors. They closed a whole section of the park due to traffic. We thought we were being clever going after school was in session, not realizing that Sept must be "Tour Season"?