Crews were not able to fight the fire at the abandoned sugar factory because of hazardous materials inside the building and weather conditions, sheriff’s officials said.

Crews responded to find a fully engulfed two story building and determined that due to hazardous material and conditions they would monitor the fire as it burned throughout the night rather than

Emergency crews remained at the scene for hours, as the Boulder County Sheriff's Office noted that the property has long been a nuisance. Officials said they have responded to the site 388 times in the past five years.