@misc{indiciaebbc868725d61,
  title = {Structure contour map of the top of the Rollins Sandstone Member of the Mesaverde Formation and Trout Creek Sandstone Member of the Iles Formation, Piceance Creek basin, Colorado},
  author = {R. C. Johnson},
  year = {1983},
  doi = {10.3133/mf1667},
  url = {https://pubs.usgs.gov/publication/mf1667},
  note = {Source identifier: mf1667}
}