@misc{indiciae04d580610e0a,
  title = {Map showing the location of the Flat-Top Coal Field and present and proposed railroads},
  author = {g.w. \& c.b. colton \& co},
  year = {1889},
  url = {https://www.loc.gov/item/98688371/},
  note = {Source identifier: 98688371}
}