Firefighters in Colorado are planning an evacuation zone along the Black Canyon of the Gunnison National Park's North Rim as part of their continuing efforts to bring the South Rim Fire under control.

Initial assessments show that the visitor center and entrance booth survived the fire, but other buildings were destroyed or heavily damaged

The South Rim fire in the Black Canyon of Gunnison National Park, near Montrose, has burned more than 4,227 acres and was only at 14% containment Thursday, according to the