Long 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 8 nautical miles (15 km) long in the southeast part 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...

. It flows south to Abbot Ice Shelf

Abbot Ice Shelf

The Abbot Ice Shelf is an ice shelf long and wide, bordering Eights Coast from Cape Waite to Phrogner Point in Antarctica. Thurston Island lies along the northern edge of the western half of this ice shelf; other sizable islands lie partly or wholly within this shelf.The ice shelf was sighted by...

, 14 nautical miles (26 km) west of Harrison Nunatak

Harrison Nunatak

Harrison Nunatak is a snow-covered nunatak, with rock exposure to the SE, located 4 mi S of Savage Glacier in the extreme SE part of Thurston Island. Discovered on helicopter flights from the USS Bellinghausen Sea Expedition in February 1960. Named by Advisory Committee on Antarctic Names for...

. Mapped by United States Geological Survey

United States Geological Survey

The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology,...

 (USGS) from surveys and U.S. Navy air photos, 1960-66. 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 Fred A. Long, Jr., aviation machinist of U.S. Navy Squadron VX-6

VX-6

Air Development Squadron Six was a United States Navy Air Development Squadron based at McMurdo Station, Antarctica...

, who wintered at Little American V in 1957 and was in Antarctica in the 1960-61 and 1962-63 seasons.