@misc{indiciae2b4aca9a59bb,
  title = {Topographic Map of the Ophir and Central Candor Chasmata Region of Mars MTM 500k -05/287E OMKT},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {2004},
  doi = {10.3133/i2807},
  url = {https://pubs.usgs.gov/publication/i2807},
  note = {Source identifier: i2807}
}