@misc{indiciaefbb8ae247c0b,
  title = {Map of passes in the Sierra Nevada from Walker's Pass to the Coast Range : from explorations and surveys},
  author = {parke, john g. and williamson, r. s. (robert stockton) and united states. war department and siebert, selmar and davis, jefferson and williams smith, issac},
  year = {1853},
  url = {https://www.loc.gov/item/98688418/},
  note = {Source identifier: 98688418}
}