Description: This geographic dataset was developed by Boulder County Sheriff's Office Communications staff during spring 2021. We collaborated with Boulder County Sheriff's Office Law and Emergency Services personnel, Boulder County Sheriff’s Office Wildland Fire leadership, Boulder County Fire Districts, and Boulder Office of Emergency Management within the western portions of Boulder County served by our PSAP (Public Safety Answering Point/Call Center). It is intended to be a set of pre-created areas for reverse 911 notifications, focused on wildfire hazard emergencies. (A separate set of flood hazard data has been developed for flood hazard emergency notifications.) The emergency responder (FIRE/LAW) would notify the BOCO 911 Communications Center about which zones to evacuate in the event of an emergency. The 911 dispatch staff could use these pre-created polygons to send a reverse notification to the area of interest.