@misc{indiciaefaa73f9512f1,
  title = {Water-level records for the northern High Plains of Colorado, 1973-77},
  author = {Thomas J. Major and Ronald G. Borman and Kenneth D. Vaught},
  year = {1977},
  doi = {10.3133/ofr77160},
  url = {https://pubs.usgs.gov/publication/ofr77160},
  note = {Source identifier: ofr77160}
}