Berry Glacier is an Antarctic glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

, about 25 miles (40.2 km) long and 5 miles (8 km) wide, draining north between Perry Range

Perry Range

Perry Range is a narrow range of mountains, 6 nautical miles long, separating the lower ends of Venzke Glacier and Berry Glacier where they enter Getz Ice Shelf, on the coast of Marie Byrd Land. The range was discovered and photographed from aircraft of the U.S. Antarctic Service in December...

 and Demas Range

Demas Range

Demas Range is a range about 8 nautical miles long that forms the lower east margin of the Berry Glacier in Marie Byrd Land. The range trends north-south culminating in Mount Goorhigian . Discovered by the United States Antarctic Service , 1939–41, led by Admiral R. E. Byrd. Named by Advisory...

 into the Getz Ice Shelf

Getz Ice Shelf

Getz Ice Shelf is an Antarctic ice shelf, over 480 km long and from 32 to 96 km wide, bordering the Hobbs and Bakutis Coasts of Marie Byrd Land between McDonald Heights and Martin Peninsula. Several large islands are partially or wholly embedded in the ice shelf.The ice shelf westward of Siple...

 on the coast of Marie Byrd Land

Marie Byrd Land

Marie Byrd Land is the portion of West Antarctica lying east of the Ross Ice Shelf and the Ross Sea and south of the Pacific Ocean, extending eastward approximately to a line between the head of the Ross Ice Shelf and Eights Coast. It stretches between 158°W and 103°24'W...

. This vicinity was first photographed and rudely charted from aircraft of the U.S. Antarctic Service in December 1940, and the glacier was mapped in detail by the U.S. Geological Survey from ground surveys and from U.S. Navy air photos, 1959–66. It was named by the 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...

 for Commander William H. Berry, U.S. Navy, Air Operations Officer for Task Force 43 during Operation Deep Freeze

Operation Deep Freeze

Operation Deep Freeze is the codename for a series of United States missions to Antarctica, beginning with "Operation Deep Freeze I" in 1955–56, followed by "Operation Deep Freeze II", "Operation Deep Freeze III", and so on...

 1969–72; Operations Officer, 1973.

There are seven volcanic nunatak

Nunatak

A nunatak is an exposed, often rocky element of a ridge, mountain, or peak not covered with ice or snow within an ice field or glacier. The term is typically used in areas where a permanent ice sheet is present...

s along the east side of the glacier.