@misc{indiciae725fac5915d7,
  title = {Geologic map of the Hogback Mountain quadrangle, Lewis and Clark and Meagher Counties, Montana},
  author = {Mitchell W. Reynolds},
  year = {2003},
  doi = {10.3133/i2773},
  url = {https://pubs.usgs.gov/publication/i2773},
  note = {Source identifier: i2773}
}