Commentary: Many freight locomotives no longer needed - FreightWaves
DGRC is Army's sole locomotive overhauler | Article | The United States Army
Are US trains really that bad? It's complicated - CNET
US: Kansas City Southern Orders 50 Locomotives from GE Transportation
Union Pacific signs $US 1bn locomotive upgrade contract with Wabtec - International Railway Journal
Union Pacific
Amtrak reveal new look of U.S. national network locomotives
Locomotives - Steamtown National Historic Site (U.S. National Park Service)
RRHMA announces unique equipment delivery of historic Union Pacific steam and diesel locomotives to its facility in Silvis, IL | Railroading Heritage of Midwest America
Diesel locomotive us hi-res stock photography and images - Alamy
Fort Eustis Military Railroad - Wikipedia
Top 10 Best U.S. Diesel Locomotives of All Time 2018. Best Powerful Diesel Trains in USA - YouTube