@misc{indiciaea92bc6e70aaa,
  title = {Geologic map of the Bend 30- x 60-minute quadrangle, central Oregon},
  author = {David R. Sherrod and Edward M. Taylor and Mark L. Ferns and William E. Scott and Richard M. Conrey and Gary A. Smith},
  year = {2004},
  doi = {10.3133/i2683},
  url = {https://pubs.usgs.gov/publication/i2683},
  note = {Source identifier: i2683}
}