The Ross Ice Shelf is on Antarctica.
Antarctica
The Ross Ice Shelf is located in Antarctica.
Antartica
That would be the Ross Ice Shelf.
Ross Island is connected to the Antarctic continent by ice.
The land to which the Ross Ice Shelf is attached on three sides is the Antarctic continent.
You may be thinking of the Ross Ice Shelf and the Ross Sea. Both are named after James Clark Ross. From Wikipedia:"Between 1839 and 1843, Ross commanded an Antarctic expedition comprising the vessels HMS Erebus and HMS Terror and charted much of the coastline of the continent."
The Ross ice Shelf is a floating ice shelf connected to the Antarctic continent, that is about the size of France. The ocean under the shelf has never been explored.
The Ross Ice Shelf was named after James Clark Ross. According to Wikipedia:"Between 1839 and 1843, Ross commanded an Antarctic expedition comprising the vessels HMS Erebus and HMS Terror and charted much of the coastline of the continent. "
The Ross Ice Shelf is a permanent part of the Antarctic continent, that rises to about 600 feet above sea level. The underside of the shelf remains largely unexplored. Its formation is continuous.
Antarctica is the continent south of the Ross Sea.
The South Pole sits on Antarctica's ice sheet, which covers 98% of the continent. The Ross Ice Shelf may be the closest to the South Pole, even though it is securely attached to the ice sheet and its connecting boundary is imprecise.