Chinook Takeoff A CH-47 Chinook helicopter takes off after filling up a bucket firefighting system during efforts to battle the Cold Springs fire in Boulder, Colo., July 11, 2016. The helicopter crew is assigned to the Colorado Army National Guard’s 2nd Battalion, 135th General Support Aviation Battalion. Army National Guard photo by Staff. Sgt. Joseph K. VonNida SHARE: Download: Full Size (1.73 MB) Tags: Guard, Soldiers, Army Credit: Staff Sgt. Joseph K. VonNida VIRIN: 160711-Z-ID894-176A.JPG Photo Gallery