LST-611 was laid down on 17 December 1943 at Seneca, III., by the Chicago Bridge & Iron Co.; launched on 28 April 1944; sponsored by Mrs. Ray Hines; and commissioned on 15 May 1944, Lt. Roy E. Burton, Jr., USNR, in command.
During World War II, LST-611 was assigned to, the Asiatic-Pacific theater and participated in the following operations:
Leyte landingóOctober 1944
Mindoro landingóDecember 1944
The ship operated with the Amphibious Force, U.S. Pacific Fleet, following World War II and participated in the Inchon landings in September 1950 during the Korean War. On 1 July 1955, LST-611 was redesig-nated Crook County (LST-611) after counties in Oregon and Wyoming. On 26 October 1956, the ship was placed in service, in reserve, in caretaker status.
LST-611 earned two battle stars for World War II service and three battle stars for Korean service.