USS "Buncombe County" (LST-510) was an "LST-491"-class tank landing ship built for the United States Navy during World War II. Named for Buncombe County, North Carolina, she was the only U.S. Naval vessel to bear the name. She currently serves as a ferry between New London, Connecticut, and Orient, Long Island.
A class tank landing ship can be found in New London.
The USS "Buncombe County" was classified as a tank landing ship. In re-reading the statement, I should have included "LST-491" to be more accurate. I think that exclusion lead to the lower probability but may not be approved by other turkers, which I would understand.