"There's no denying Hartman's] abilities as a photographer. Shape, color, and light, he has an impeccable eye for composition, for juxtaposing line against line, drawing the viewer's eye into his subject. . . . In North Dakota, he likes a flood-drenched plain in orange twilight, one stretch of barbed wire fence in a strong horizontal, another triangulating stretch (just the fence posts visible above the water) disappearing into the distance. In South Dakota, he gives us a flat plain with alternating gold, green, and brown strips of field, a dark storm building overhead. . . . Accompanying...