@misc{indiciae74a7aa3a90d5,
  title = {New trans-continental map of the Pacific R.R. and routes of overland travel to Colorado, Nebraska, the Black Hills, Utah, Idaho, Nevada, Montana, California and the Pacific Coast},
  author = {union pacific railroad company and williams, henry t.},
  year = {1877},
  url = {https://www.loc.gov/item/98688757/},
  note = {Source identifier: 98688757}
}