@misc{indiciaeb7b0d5c66986,
  title = {Colton's rail-road and military map of the United States, Mexico, the West Indies, \&c},
  author = {colton, j. h. (joseph hutchins)},
  year = {1862},
  url = {https://www.loc.gov/item/gm71000834/},
  note = {Source identifier: gm71000834}
}