Bartlett Glacier is a tributary 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 30 mile long and 5 miles (8 km) wide at its terminus, flowing northeast from Nilsen Plateau

Nilsen Plateau

Nilsen Plateau is a rugged, ice-covered plateau which, including Fram Mesa, is about 30 nautical miles long and 1 to 12 nautical miles wide, rising to 3,940 m between the upper reaches of the Amundsen and Scott Glaciers, in the Queen Maud Mountains...

 and joining Scott Glacier

Scott Glacier (Transantarctic Mountains)

The Scott Glacier is a major glacier, 120 miles long, that drains the East Antarctic Ice Sheet through the Queen Maud Mountains to the Ross Ice Shelf...

 close north of Mount Gardiner

Mount Gardiner

Mount Gardiner is a ridge-like granitic mountain, 2,480 m, standing 3 nautical miles east of Mount Ruth and just south of the junction of Bartlett and Scott Glaciers, in the Queen Maud Mountains. Discovered in December 1934 by the Byrd Antarctic Expedition geological party under Quin Blackburn,...

. It was discovered in December 1934 by the Byrd Antarctic Expedition geological party under Quin Blackburn, and named by Richard E. Byrd for Captain Robert A. Bartlett of Brigus, Newfoundland, noted Arctic navigator and explorer who recommended that the expedition acquire the Bear, an ice-ship which was purchased and rechristened by Byrd as the Bear of Oakland.