"Occurred on June 23, 2016 / Knik River Valley, Chugach Mountains, Alaska, USA
Info from Licensor: "There is a local group of experimental supercub pilots in south central Alaska, who on a daily basis compete with each other for bragging rights. These competitions include short take-offs and landings in all different terrains. On this day, two of them were up by the Knik glacier while there was a 25 mph headwind which allowed for vertical landings."