they met in promontory Utah
Promontory Summit Utah
The Union Pacific covers 23 states west of the Mississippi river. The Central Pacific runs between California and Utah.
The Union Pacific used cheap labor usually Chinese that had come to the US and also those needing jobs such as former solders who had fought in the Civil War.
the railroad was built in 2054.... no im joking you dummies...i have ni idea i cane here looking for the answer...