The east flank of the Bighorn Fire is most active in the area between Buster Spring and Cargodera Spring, putting up thick smoke that is visible from the community of Summerhaven. Overnight, crews working on Mt. Lemmon will monitor the fire progression to the northeast and are prepared to initiate firing operations as needed to secure that section of the perimeter.
Pima County Sheriff’s Department has closed Catalina Highway to the public at milepost zero. Only residents and business owners may pass.