Mount Greenfield should not be confused with Greenfield Mountain.
Mount Greenfield (-80.7667°N -63°W) is an ice-free mountain rising to and surmounting the western extremity of Stephenson Bastion in the Shackleton Range of Antarctica. It was mapped in 1957 by the Commonwealth Trans-Antarctic Expedition (CTAE) and named after George C. Greenfield, a literary agent of the CTAE from 1955 to 1958.