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 a long railroad bridge and a city in the background. The bridge runs 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 of a group of men working on train tracks. RGW - 121 on trestle laguna, Utah, tintic branch.

A photograph taken near Colton, Utah of a railroad bridge with cars on it over a frozen pond. There are a few men on the tracks near the train.

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.

A photograph, taken outdoors, of an iron bridge across a lake or river. To the side of the bridge there is part of a town that is visible.

A photograph, taken outdoors, of a view of the top of the iron bridge that runs across the Colorado River.

A photograph, taken outdoors, of a steel bridge being built and an erecting crane on one part of it. View southeast from north bank.

A photograph, taken outdoors, of two men standing on a steel bridge, it is a view from the south.