In 1964 '' Plymouth Rock '' made two Caribbean cruises and then took part in Operation Steel Pike I off the coast of Spain , the largest amphibious operation since World War II . Early 1965 found '' Plymouth Rock '' on another Caribbean cruise . From 28 January to 7 March 1966 she was involved in H-Bomb recovery operations off Palomares , Spain following the Palomares hydrogen bombs incident . Late 1966 found her once again in the Caribbean , providing for the victims of Hurricane Inez in Haiti . After three Caribbean cruises in early 1967 , '' Plymouth Rock '' deployed to northern Europe . She made two more Caribbean deployments in 1968 . From June to July 1969 she again deployed to northern Europe
Palomares hydrogen bombs incident
1966 Palomares B-52 crash
USS Plymouth Rock (LSD-29)