@misc{indiciae0532d70fa193,
  title = {General map of the United States \& their territory between the Mississippi \& the Pacific Ocean. 1. Showing the different surveyed routes from the Mississippi valley to the coast of Pacific Ocean, 2. the new established \& proposed Post Routes, 3. the recently discovered gold, silver, and copper region in Kansas, Nebraska and Arizona},
  author = {fiala, john t.},
  year = {1859},
  url = {https://www.loc.gov/item/98688437/},
  note = {Source identifier: 98688437}
}