Cape Rymill is a steep, metamorphic rock cliff standing opposite the central part of Hearst Island

Hearst Island

Hearst Island is an ice-covered, dome-shaped island lying east of Cape Rymill, in the Weddell Sea, off the eastern coast of Palmer Land. The island is long, in a North-South direction, wide, and rises to ....

 and jutting out from the icecap along the east coast of Palmer Land

Palmer Land

Palmer Land is that portion of the Antarctic Peninsula which lies south of a line joining Cape Jeremy and Cape Agassiz. This application of Palmer Land is consistent with the 1964 agreement between US-ACAN and UK-APC, in which the name Antarctic Peninsula was approved for the major peninsula of...

. Named for John Rymill by members of the East Base of the United States Antarctic Service (USAS) who charted this coast by land and from the air in 1940. Rymill was the leader of the British Graham Land Expedition

British Graham Land Expedition

A British expedition to Graham Land led by John Lachlan Cope took place between 1920 and 1922. The British Graham Land Expedition was a geophysical and exploration expedition to Graham Land in Antarctica between 1934 to 1937. Under the leadership of John Riddoch Rymill, the expedition spent two...

 (BGLE), and in 1936 sledged eastward across Antarctic Peninsula

Antarctic Peninsula

The Antarctic Peninsula is the northernmost part of the mainland of Antarctica. It extends from a line between Cape Adams and a point on the mainland south of Eklund Islands....

to 6945S, 6328W.