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Kalahira
The nation's largest railroad center was found in Chicago. Chicago is considered as the most important center of railroads in North America. Chicago has been the most significant interchange point of commercial transportation between the nation’s great railroads.
W0lf93
nation's largest railroad center was located in: Chicago The railroad has been developed since the 19th century. To get a picture on how big it is, Know that Chicago's railroad handles about 25% (one-fourth) of the nation's freight traffic. (Just from a single stat from the total of 50 states)