The Substance The Shadow Author:Duane A. Smith The Substance & The Shadow contains only the tip of an amazing photographic collection. There are photographs featuring a wide range of subjects covering the years from the 1880's into the 1960s with the majority falling in the decades of the 1880s through the 1920s. The main focus viewed the area from the Four Corners through the Montros... more »e/Delta, Colorado region, but there are other photos throughout Colorado and a few beyond.« less