In 1976 and 1977, I photographed the railroad yards of Denver, Colorado, using black and white infrared film, an exciting, unpredictable medium that worked best in the magic yellow light of a late afternoon spring or autumn day. I longed to make beauty out of one of the oldest areas of the city--an industrial wasteland to some, an unknown world to others. Through this work, I truly came to love Denver. The photographs are perhaps all the more poignant now that the tracks have been torn up and the valley reconfigured for a new century.