@misc{indiciaeff711a583d3a,
  title = {Geologic map of the Pinewood Lake quadrangle, Boulder and Larimer Counties, Colorado},
  author = {Raymundo Punongbayan},
  year = {1989},
  doi = {10.3133/gq1627},
  url = {https://pubs.usgs.gov/publication/gq1627},
  note = {Source identifier: gq1627}
}