Treeline Rope New Jersey Air National Guard airmen conduct fast-rope training from an Army UH-60 Black Hawk as as part of exercise Rail Yard at Warren Grove Gunnery Range, N.J., Sept. 21, 2016. National Guard photo by Air Force Tech. Sgt. Matt Hecht SHARE: Download: Full Size (1.19 MB) Credit: Tech. Sgt. Matt Hecht VIRIN: 210916-Z-ZZZZZ-001A.JPG Photo Gallery