@misc{indiciae700d1d6790de,
  title = {Surficial geologic maps along the riparian zone of the Animas River and its headwater tributaries, Silverton to Durango, Colorado, with upper Animas River watershed gradient profiles},
  author = {Robert W. Blair and Douglas B. Yager and Stanley E. Church},
  year = {2002},
  doi = {10.3133/ds71},
  url = {https://pubs.usgs.gov/publication/ds71},
  note = {Source identifier: ds71}
}