High Quality Content by WIKIPEDIA articles! Snow Hill Island is an almost completely snowcapped island, 20 miles (32 km) long and 6 miles (10 km) wide, lying off the east coast of the Antarctic Peninsula. It is separated from James Ross Island to the northeast by Admiralty Sound. It is one of several islands around the peninsula known as Graham Land, which is closer to South America than any other part of that continent.It was discovered on January 6, 1843 by a British expedition under James Clark Ross who, uncertain of its connection with the mainland, named it Snow Hill because its snow cover stood out in contrast to the bare ground of nearby Seymour Island.