The Missouri Pacific Railroad, commonly abbreviated as MoPac, was one of the first railroads in the United States west of the Mississippi River. MoPac was a Class I railroad growing from dozens of predecessors and mergers. Wikipedia
Founded: 1917
Successor: Union Pacific Railroad
Headquarters: St. Louis, MO
Founders: Thomas Allen; Wayman Crow; John O'Fallon; Daniel D. Page
Predecessor: Pacific Railroad
Reporting mark: MP
Track gauge: 4 ft 8+1⁄2 in (1,435 mm) standard gauge