@misc{indiciae4753ee37745b,
  title = {Mineral resources of the Indian Peaks Study Area, Boulder and Grand counties, Colorado, with a section on interpretation of aeromagnetic data},
  author = {Robert Carl Pearson and Gordon Johnson},
  year = {1980},
  doi = {10.3133/b1463},
  url = {https://pubs.usgs.gov/publication/b1463},
  note = {Source identifier: b1463}
}