I photographed this group of people enveloped in the steam pouring from the earth in Yellowstone’s Midway Geyser Basin. They stand upon wooden boardwalks that are largely invisible here. They seem to be incongruously walking on fire, and appear oblivious to the fact that they are also floating within a cloud, a cloud not so different from the ranks of clouds that float in the sky over their heads. They are linked here to the forces of nature itself, and should long remember this moment.