Photograph of an exterior view of the Union Pacific Santa Fe and Salt Lake Depot, showing the First Street Viaduct, Los Angeles, ca.1890. A two-story domed and spired building is visible to the right across a foreground street, made of brick. A ladder leans against its eaves at the main entrance. A picket fence extends from it to the left, connecting it with a smaller brick building. A horse-drawn carriage is visible in the open lot that appears farther to the left, behind which a short train is making its way down the tracks, running under the viaduct, which is pictured at the extreme left. A streetcar can be seen making its way across the top of the viaduct. Pedestrians walk along the street, across from a second vacant lot in the foreground, where the beginnings of a shingled roof can be seen. More of the city is visible in the background distance.