@misc{indiciae622a248c4a62,
  title = {Principal facts for gravity stations in the Sangre de Cristo Mountains, Rio Grande and Isabel National Forests, south-central Colorado},
  author = {G. A. Abrams},
  year = {1993},
  doi = {10.3133/ofr9318},
  url = {https://pubs.usgs.gov/publication/ofr9318},
  note = {Source identifier: ofr9318}
}