In January, 2012, I visited Yellowstone for 7 days of frigid and glorious winter photography. I went with a small group, traveling about on one of the big snow coaches as we explored the winter landscape. We were taken to this place, where, among the frozen grasslands of the prairie, a lone tree is silhouetted against the hills. It is, apparently, a much photographed icon of the park. As my fellow photographers focused on the tree, I was more intrigued by the barren yet sinuously alive forms of the hills. The low winter sun cast wonderful shadows on the snow, echoing the slate of the sky above. It is a simple yet complex landscape which, to my eye, just hints at the vastness of this wonderful national park.