Pryor 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...

 flowing northeastward, to the north of Mount Shields and Yermak Point

Yermak Point

Yermak Point is a coastal point in the west part of Rennick Bay, 25 miles west-northwest of Znamenskiy Island. Named by the Soviet Antarctic Expedition after the Soviet icebreaker Yermak....

, into Rennick Bay

Rennick Bay

Rennick Bay is an embayment of the coastline at the terminus of Rennick Glacier. It is bounded on the west and east by Belousov Point and Stuhlinger Ice Piedmont. The eastern part of the bay was discovered from the ship Terra Nova, of the British Antarctic Expedition under Scott. Named by the...

. The feature is about 30 nautical miles (60 km) long and forms a physical separation between Wilson Hills

Wilson Hills

Wilson Hills is a group of scattered hills, nunataks and ridges that extend NW-SE for about between Matusevich Glacier and Pryor Glacier in Antarctica. They were discovered by Lieutenant Harry Pennell, Royal Navy, on the Terra Nova Expedition in February 1911 during Robert Falcon Scott's last...

 and Usarp Mountains

Usarp Mountains

The Usarp Mountains is a major Antarctic mountain range, lying westward of the Rennick Glacier and trending N-S for about . The feature is bounded to the north by Pryor Glacier and the Wilson Hills...

. 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 aerial photographs, 1960-62. 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 Madison E. Pryor, scientific leader at McMurdo Station

McMurdo Station

McMurdo Station is a U.S. Antarctic research center located on the southern tip of Ross Island, which is in the New Zealand-claimed Ross Dependency on the shore of McMurdo Sound in Antarctica. It is operated by the United States through the United States Antarctic Program, a branch of the National...

 (1959) and U.S. Exchange Scientist at the Soviet Mirny Station

Mirny Station

Mirny is a Russian science station in Antarctica, located on the Antarctic coast of the Davis Sea in the Australian Antarctic Territory. Named after support vessel of the Bellingshausen's expedition....

(1962).