TY - RPRT TI - Controlled photomosaic of the MTM 20182 Quadrangle, Orcus Patera region of Mars AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1995 DO - 10.3133/i2403 UR - https://pubs.usgs.gov/publication/i2403 ID - i2403 ER -