Peterson 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 west into Penney Bay

Penney Bay

Penney Bay is a large bay extending from Robinson Ridge to Browning Peninsula, at the eastern side of the Windmill Islands. First mapped from air photos taken by U.S. Navy OpHjp, 1946-47. Named by Advisory Committee on Antarctic Names for Richard L. Penney, ornithologist and biologist at Wilkes...

 opposite Herring Island

Herring Island

For other uses see Herring Island Herring Island is an Antarctic rocky island, long, lying east of Cloyd Island in the south part of the Windmill Islands. It was first mapped from air photos taken by USN Operation Highjump and Operation Windmill in 1947 and 1948. Named by the US-ACAN for Lt....

 in the Windmill Islands

Windmill Islands

The Windmill Islands are an Antarctic group of rocky islands and rocks about wide, paralleling the coast of Wilkes Land for immediately north of Vanderford Glacier along the east side of Vincennes Bay...

. Mapped from aerial photographs taken by U.S. Navy (USN) OpHjp, 1946-47, and named for Louie N. Peterson, radio operator and recorder with the U.S. Navy (USN) OpWml parties which established astronomical control stations along Wilhelm II, Knox

Knox Coast

Knox Coast, part of Wilkes Land, is a portion of the coast of Antarctica lying between Cape Hordern, at 100° 31' E, and the Hatch Islands, at 109° 16' E.-History:...

 and Budd Coast

Budd Coast

Budd Coast , part of Wilkes Land, is that portion of the coast of Antarctica lying between the Hatch Islands, at 109°16'E, and Cape Waldron, at 115°33'E. It was discovered in February 1840 by the U.S. Exploring Expedition under the leadership of Lieutenant Charles Wilkes, and named by Wilkes for...

s during January-February 1948.