These images were obtained on the helicopter flights to and from the Klutlan Glacier study site. The outbound sequence (#5590-5706) starts from the base camp at the White River crossing on the Alaska Highway and heads south, to a point just upvalley of the debris-covered terminus (approx. 10-15 km from Alaska border), and turning back north to the landing spot on the Generc River floodplain close to the study site (see Fig. 1 in paper). On the return leg at the end of the day, the flight initially went upvalley to pick up another party (#5884-5926), before turning north and returning to base camp (#5929-5993).