@misc{indiciae85a6983ce253,
  title = {Geologic map of the MTM 85080 Quadrangle, Chasma Boreale Region of Mars},
  author = {Kenneth E. Herkenhoff},
  year = {2003},
  doi = {10.3133/i2753},
  url = {https://pubs.usgs.gov/publication/i2753},
  note = {Source identifier: i2753}
}