 In November 1953 she commenced work as cargo and personnel carrier, helicopter supply ship, and LORAC team unit for the Navy's Hydrographic Office, then engaged in scientific research in and resurvey of the Atlantic.Renamed USS "Mineral County" (LST-988) on 1 July 1955, she continued to serve the Hydrographic Office until the spring of 1957 when she was ordered to prepare for inactivation.On 8 July 1957, at Norfolk, she was placed in reserve.