@misc{indiciaecd63f6d62c47,
  title = {Preliminary geologic map of the Handie's Peak quadrangle, Colorado},
  author = {Robert G. Luedke and Wilbur S. Burbank},
  year = {1975},
  doi = {10.3133/ofr75431},
  url = {https://pubs.usgs.gov/publication/ofr75431},
  note = {Source identifier: ofr75431}
}