On June 15th, 2016, the U.S. Open was held at the Oakmont Country Club in Plum, Pennsylvania. But, the renowned golf competition’s annual journey did not begin there. On a cold October morning in 2015, a single survey drone initiated its mission. Flying over all 7,255 yards of Pennsylvania greens, the drone tracked, mapped, and planned the location that would soon host the world’s best golfers....