The remnants of two destroyed planes is under review now by federal investigators hoping to understand what caused a deadly, mid-air collision in Boulder.
More Video
Opening arguments are expected this week in the trial of a man accused of causing a wreck that killed three people, including a 3-year-old boy.
More Video
Questions come in all the time about where the different regions of Colorado are. Here, you can learn where to find the foothills versus the plains and the different mountain areas. More
