@misc{indiciae76c1c5acaafa,
  title = {Vegetation map of the Ward Quadrangle, Boulder County, Colorado},
  author = {D. J. Gable},
  year = {1978},
  doi = {10.3133/mf940},
  url = {https://pubs.usgs.gov/publication/mf940},
  note = {Source identifier: mf940}
}