Ommanney Glacier is a valley

Valley

In geology, a valley or dale is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge.The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys...

 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...

, 20 nautical miles (37 km) long, meandering northward in the Admiralty Mountains

Admiralty Mountains

The Admiralty Mountains is a large group of high mountains and individually-named ranges and ridges in northeastern Victoria Land of Antarctica...

 to discharge into Relay Bay

Relay Bay

Relay Bay is an arm of Robertson Bay, about 5 nautical miles wide, lying between Islands Point and Penelope Point along the north coast of Victoria Land. First visited on October 4, 1911 by the Northern Party, led by Victor Campbell, of the British Antarctic Expedition, 1910-13...

, on the west side of Robertson Bay

Robertson Bay

Robertson Bay is a large, roughly triangular bay that indents the north coast of Victoria Land between Cape Barrow and Cape Adare. Discovered in 1841 by Captain James Clark Ross, Royal Navy, who named it for Dr. John Robertson, Surgeon on the HMS Terror....

, along the north coast of Victoria Land

Victoria Land

Victoria Land is a region of Antarctica bounded on the east by the Ross Ice Shelf and the Ross Sea and on the west by Oates Land and Wilkes Land. It was discovered by Captain James Clark Ross in January 1841 and named after the UK's Queen Victoria...

. Charted by the British Antarctic Expedition, 1898–1900, under C.E. Borchgrevink, who named it for Admiral Sir Erasmus Ommanney, who had served in the Arctic Expedition of 1850.