She called at Ulithi Atoll to allow the Commander, 3rd Amphibious Force, to disembark and travel by plane to Hawaii, while she herself sailed for an overhaul at San Francisco Bay, arriving on 11 February and leaving on 22 April for Pearl Harbor and Guam.

After months of moving occupation troops from the Philippines and other bases to ports in Japan and China, she left Shanghai on 28 May 1946, bound for San Diego, the Panama Canal, and New York Harbor, arriving on 7 July 1946.

The ship sailed from Naval Station Norfolk on 2 December, passed through the Panama Canal to rendezvous with the Pacific group, and with it she reached the Bay of Whales, New Zealand on 16 January 1947.

Having participated in exercise Surfboard with the 38th Infantry Regiment from Washington State off the coast of San Simeon, California in mid-March,[1] Mount Olympus proceeded to Arctic waters as part of Project 572 in support of the Distant Early Warning Line.

Mount Olympus returned to San Diego on 29 September and on 31 October 1955, she proceeded to Mare Island Naval Shipyard for deactivation.

The ship was transferred to the Maritime Administration in June 1966, and she remained in the National Defense Reserve Fleet in Suisun Bay, California.