California's Railroad to the U.S. 1861 - 1996

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Model Train Help EBook

Southern Pacific
Steam Locomotives

Class# SeriesBuilder
SP Mk-23200-3215Baldwin(16)
SP Mk-43216-3240Baldwin(25)
SP Mk-53236-3249Baldwin(22)
SP Mk-53270-3277Baldwin/Lima
SP Mk-63250-3269Lima(20)
SP Mk-73300-3309Schenectady(10)
SP Mk-83310-3314Schenectady(5)
SP Mk-93315-3324Schenectady(10)

There was no Mk-1 or Mk-3 Class.

1644 units built between 1911 and 1923.

108 were assigned to the Pacific Lines.

57 were assigned to the Atlantic Lines.

4 were assigned to the Mexican Lines.

A number of units were rebuilt and reclassed, accounting for the mismatch in numbers.


  • A Century of SP Steam Locomotives - Guy L. Dunscomb
  • SP Co. Steam Locomotive Compendium by Diebert & Strapac
  • Volume 5 -- Southern Pacific Mikado 2-8-2 Pictorial - by Duane Karam Jr. & Jeff Ainsworth - Monte Vista Publishing

SP Steam Index

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