@misc{indiciaed54ad668adf9,
  title = {Land-use classification map of the Boulder-Fort Collins-Greeley area, Front Range Urban Corridor, Colorado},
  author = {L. B. Driscoll},
  year = {1974},
  doi = {10.3133/i855b},
  url = {https://pubs.usgs.gov/publication/i855B},
  note = {Source identifier: i855B}
}