The White Mountains’ Cold River is as pellucid as it is true to its name. Nobody can see the riverbed itself, because all light, both to and from it, is bent and partly blocked by the water’s surface, always roiled with falls, ripples, bubbles, and foam that can dazzle in summer sunlight. Objectivity’s breakdown brings a chance for subjectivity, though. This photographic portfolio presents the play of light between the river’s surface and its bed so as to stimulate viewers’ surprise, pleasure, and imagination.