High Quality Content by WIKIPEDIA articles! USS Clearwater County (LST-602), originally USS LST-602, was a United States Navy LST-542-class tank landing ship built during World War II and in commission from 1944 to 1946 and from 1950 to ca. 1957. Named after Clearwater County, Idaho, and Clearwater County, Minnesota, she was the only U.S. Navy vessel to bear the name. It was transferred to, and is currently in use by the Mexican Navy.