@misc{indiciae838243eddefe,
  title = {Structure contour map and isochore map of the nonmarine part of the Mesaverde Group, Piceance Creek basin, Colorado},
  author = {M.P. Granica and R. C. Johnson},
  year = {1980},
  doi = {10.3133/mf1189},
  url = {https://pubs.usgs.gov/publication/mf1189},
  note = {Source identifier: mf1189}
}