Kosco Glacier is a 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 20 nautical miles (37 km) long, flowing from the Anderson Heights

Anderson Heights

Anderson Heights is a roughly rectangular snow-covered tableland, long and , with an elevation somewhat over , located between Mount Bennett and Mount Butters in the east part of the Bush Mountains of Antarctica. It was discovered and photographed by U.S...

 vicinity of the Bush Mountains

Bush Mountains

The Bush Mountains is a series of rugged elevations at the heads of the Ramsey and Kosco glaciers in Antarctica.The Bush Mountains extend from Mount Weir in the west to Anderson Heights overlooking Shackleton Glacier in the east. They were photographed at a distance by the Byrd Antarctic Expedition...

 northward to enter Ross Ice Shelf

Ross Ice Shelf

The Ross Ice Shelf is the largest ice shelf of Antarctica . It is several hundred metres thick. The nearly vertical ice front to the open sea is more than 600 km long, and between 15 and 50 metres high above the water surface...

 between Wilson Portal

Wilson Portal

Wilson Portal is a coastal mountain rising over 1,000 m, which is snow covered except for its north steep rock face. Spurs descend northeast from the feature. It stands 2.5 nautical miles southeast of O'Leary Peak and overlooks the west side of the mouth of Kosko Glacier where the...

 and Mount Speed

Mount Speed

Mount Speed is a roughly circular, mound-shaped mountain with several low summits at the edge of Ross Ice Shelf, standing at the west side of the mouth of Shackleton Glacier. Discovered by the United States Antarctic Service , and surveyed by A.P. Crary, leader of the U.S. Ross Ice Shelf Traverse...

. Discovered by the United States Antarctic Service (USAS), 1939-41. 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 Captain George F. Kosco, U.S. Navy, chief aerologist and chief scientist of U.S. Navy Operation Highjump, 1946-47.