@misc{indiciaee4e62cad7529,
  title = {Structure contours and overburden on the top of the Mahogany zone, Green River Formation, in the southern part of the Piceance Creek basin, Rio Blanco and Garfield counties, Colorado},
  author = {M.C. Mullens and J. R. Donnell},
  year = {1976},
  doi = {10.3133/mf746},
  url = {https://pubs.usgs.gov/publication/mf746},
  note = {Source identifier: mf746}
}