@misc{indiciae3ff94cf7145a,
  title = {Regional structure, the Atlantic Richfield-Marathon Oil No. 1 Gibbs borehole, and hydrocarbon resource potential west of the Rocky Mountain trench in northwestern Montana},
  author = {J. E. Harrison and E. R. Cressman and M. D. Kleinkopf},
  year = {1985},
  doi = {10.3133/ofr85249},
  url = {https://pubs.usgs.gov/publication/ofr85249},
  note = {Source identifier: ofr85249}
}