Les Walkling is shown here photographing from the hill overlooking Cossack. Artist, scientist and intellectual, he saves his energy by avoiding frivolous banter. But when he speaks, everyone listening drops their jaw in either amazement or incomprehension. A great teacher like Christian, he navigates the balance between technical prowess and conceptual thinking more than anyone else I have worked with, and is more than happy to share this knowledge. When he takes a photo, he also became a photo, striking an epic figure in the landscape.