@misc{indiciaee7611ac7f186,
  title = {Revised shaded relief map and controlled color photomosaic of the Mare Boreum region (MC-1) of Mars},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1999},
  doi = {10.3133/i2570},
  url = {https://pubs.usgs.gov/publication/i2570},
  note = {Source identifier: i2570}
}