Tierney Peninsula is an ice-covered peninsula

Peninsula

A peninsula is a piece of land that is bordered by water on three sides but connected to mainland. In many Germanic and Celtic languages and also in Baltic, Slavic and Hungarian, peninsulas are called "half-islands"....

 about 14 nautical miles (26 km) long, between Savage Glacier

Savage Glacier

Savage Glacier is a glacier at the east end of Thurston Island, lying south of Tierney Peninsula and flowing east to Seraph Bay. Discovered on helicopter flights from the USS Glacier and Burton Island by personnel of the U.S. Navy Bellingshausen Sea Expedition in February 1960. Named by Advisory...

 and Morgan Inlet

Morgan Inlet

Morgan Inlet is an ice-filled inlet about 18 nautical miles long, with two branches, indenting the east end of Thurston Island between Lofgren and Tierney Peninsulas. Discovered in helicopter flights from USS Bellingshausen Sea Expedition in February 1960. Named by Advisory Committee on Antarctic...

 in the east end of Thurston Island

Thurston Island

Thurston Island is an ice-covered, glacially dissected island, long, wide and in area, lying a short way off the NW end of Ellsworth Land, Antarctica. It is the third largest island of Antarctica, after Alexander Island and Berkner Island...

. Discovered on helicopter flights from the USS Burton Island and Glacier of the U.S. Navy Bellingshausen Sea Expedition in February 1960. Named by Advisory Committee on Antarctic Names

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

 (US-ACAN) for J.Q. Tierney, oceanographer aboard the Burton Island on this expedition.