19,000 forced to flee Boulder. Fire crews on Sunday were battling a fast-moving wildfire that raged south of the college town of Boulder and forced 19,400 residents to flee. The wildfire, which was fueled by winds earlier in the day on Saturday, has grown to 122 acres with no containment, Boulder Fire-Rescue spokesperson Marya Washburn said. So far, no structures have been damaged. The site of the wildfire is not far from the location of a destructive 2021 blaze that destroyed more than 1,000 homes. 📸 Michael Ciaglo, Getty Images