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With Pencil Notes Projecting Transcontinental Railroad Routes

Highly detailed map of the United States, illustrating a number of the transitional Trans-Mississippi West territorial boundaries shortly after the end of the Civil War.

The map provides the Territorial configurations of 1861, on the eve of the Civil War, including:

  • Proposed Arizona Territory below New Mexico (the so-called Baylor Line)
  • Newly created Nevada Territory in its first configuration (before being expanded east to reduce the size of Utah)
  • Colorado Territory
  • Nebraska Territory including all of Montana and Wyoming -- a likely error, as the region was then part of Dakota Territory.
  • Washington Territory wrapped around the new state of Oregon


Condition Description
foxing. Pencil notes adding in the transcontinental railroad routes.