A photograph, taken outdoors, of an iron bridge being built. The erecting crane is at work on the center spam.

A photograph, taken outdoors, of two men standing on one end of a steel bridge that is in the process of being built. There is a large piece of machinery at the end of the part that has been built.

A photograph, taken outdoors, of seven men sitting and standing at the entrance of a railroad bridge that goes over the Colorado River. The view is looking down through the bridge.

A photograph, taken outdoors, of a man standing between two canyon walls next to some railroad tracks that lead to a railroad bridge that goes over the Colorado River.

A photograph, taken outdoors, of five men standing on the ground near some railroad tracks, looking toward a steel railroad bridge.

A photograph taken on the Railroad near Castilla, Utah. There is a group of men and horses that are working on the railroad.

A photograph taken in Manti, Utah of Chester Station with men outside the building, railroad tracks, some railroad cars and a horse and carriage.

A photograph of a group of men and horses working in an area at the base of a mountain near some railroad tracks and a building.

A photograph, taken outdoors of a group of men with shovels and buckets on train tracks

A photograph of D&RG "High Line" construction at the Midas loop, looking north-westerly along the upper level, background. Men and horses approaching a bridge.