In the "Age of Steam" Engine No. 155, a Pacific type 4-6-2 locomotive, heads the morning train of the National Railways of Mexico enroute from Mexico City to Guadalajara around 1928.

Photograph of several buildings and a smoke stack comprising the Southern Pacific shops and engine terminal. There are railroad tracks visible in the lower part of the image and an open, fenced field at left. Text in the lower-right portion says "R.R. shops Empalme, Mex. Foto Hopkins."

Porter Locomotive No. 4, type 0-6-4T heads an empty ore train, enroute from the smelter in Chihuahua City to the mines at Santa Eulalia, Mexico on the 30-inch gauge El Potosi Industrial and Chihuahua Railroad in June 1922. On the mountain side in the background are steel towers supporting an aerial tramway, which had recently been completed for transporting ore from the mine to a reduction mill.

Saltillo, Mexico passenger depot of the National Railways of Mexico, September 1920. This was a busy terminal on the Nuevo Laredo to Mexico City main line. Also for local trains operating to Monterrey, Piedras Negras, and Torreon.

Passenger train on the bridge from Rio Jamapa at Tomatlán and is part of the 2ft gauge line of the Ferrocarril Mexicano. This narrow-gauge train, headed by a Consolidation type 2-8-0 Baldwin No. 1 steam locomotive with a diverse consist, carried a Broiler-buffet Sleeping car on the rear-end which provided meal service for Pullman passengers.

The Tampico, Tamaulipas, Mexico engine terminal of the National Railroad of Mexico in March 1920. At this time Mallet (Articulated) type 2-6-6-2 steam locomotives frequently headed passenger trains on the Monterrey - Tampico Line. This was one of the earliest divisions on the National Railways where Mallet (Articulated) type locomotives went into service.

Monterrey's Union station in the "Glory Days of Steam" January 1920. In this era, it was one of the finest railroad passenger depots in Mexico. This station had ten stub-end tracks. There were sixteen through passenger trains daily, inbound and outbound. In addition, there were trains originating at Monterrey, such as those to Matamoros, Nuevo Laredo, Realta, Saltillo and Tampico. The track in the foreground was a portion of Monterrey's electric street railway system. The paralleling track in the background was the main line of the National Railways of Mexico coming into Monterrey from Tampico.