I watched the summit of Mt McKinley (Denali) slowly clear off one evening in Denali National Park, while the lower portion was still enshrouded in clouds. So I set my telephoto lens up on a tripod and thought I’d shoot the summits. Many are not aware that there are two summits to the mountain, the north summit, 19,470 feet (5,934 m) and the south summit, which is the highest one, 20,320 feet (6,194 m)–on the left in this picture. I found the clouds intriguing as they slowly dissipated, and watched it for a while, took my camera off the tripod and got ready to move on when I noticed the tiny flightseeing plane approaching the mountain. I grabbed my camera, quickly composed and shot a series of the plane moving across the peak. I had been on manual mode so I knew the exposure was dead on, but my shutter speed was on the low side at 1/160 sec. Fortunately, that was enough to stop the plane at that distance. I have flown around that mountain with the doors off doing aerials in the past, but this perspective of flightseeing is a new view to me. Below is a single frame from the panorama series. What a sense of scale!!