Union Pacific: A Historical Look at the Transcontinental Railroad is a comprehensive exploration of the history of the Union Pacific Railroad and its role in the development of the United States. This book examines the construction of the railroad, its impact on the economy and
From Wikipedia
The Union Pacific Railroad Company is an American Class I freight-hauling railroad that operates 8,300 locomotives over 32,200 miles (51,800 km) routes in 23 U.S. states west of Chicago and New Orleans. Union Pacific is the second-largest railroad in the United States after BNSF.