The geometric patterns created by sunlight striking the rooftops of Kennecott's vast but empty power plant recall the glory days of early 20th Century heavy industry. These patterns are also known as rhythmic repetition -- another method I use in organizing my photographs. In this case I use three different forms of rhythm: repeating roof lines carry the eye through the picture from front to back, repeating diagonals create a series of implied dynamic visual thrusts from corner to corner, and finally, a series of vertical smoke stacks marches across the top of the frame in varying sizes. By creating these rhythms within my frame, I tried to evoke the ghost of a great industrial cathedral slowly decaying deep in the mountains of Alaska. Its time ran out when the last copper train left Kennecott in 1938.