Steventon Island (77°15′S148°15′W) is a broad ice-covered island about 24 miles (39 km) long off of Antarctica, lying west of Court Ridge in the Sulzberger Ice Shelf. It was mapped from surveys by the United States Geological Survey (USGS) and U.S. Navy air photos (1959–65), and named by the Advisory Committee on Antarctic Names (US-ACAN) for Richard F.