Ironside 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 30 mi (48 km) long, originating at the south side of Mount Minto 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...

 and draining southeast between Mount Whewell

Mount Whewell

Mount Whewell is a massive mountain between the mouths of Ironside and Honeycomb Glaciers in the Admiralty Mountains, Victoria Land. Named by Sir James Clark Ross, January 15, 1841, for the Reverend Dr. William Whewell, Master of Trinity College, Cambridge....

 and Mount Herschel

Mount Herschel

Mount Herschel is a conspicuous peak standing northeast of Mount Peacock and overlooking the terminus of Ironside Glacier from the south, in the Admiralty Mountains, Victoria Land, Antarctica....

 into Moubray Bay

Moubray Bay

Moubray Bay is a bay in western Ross Sea, indenting the coast of Victoria Land between Cape Roget and Hallett. Discovered in 1841 by Sir James Clark Ross and named by him for George H. Moubray, clerk in charge of the expedition ship Terror....

, 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...

, Antarctica. At its mouth it is joined by the Honeycomb Glacier

Honeycomb Glacier

Honeycomb Glacier is a glacier which drains the north and east sides of the mountainous mass surmounted by Mount Whewell, then flows south between that feature and Honeycomb Ridge to Moubray Bay. Named by the New Zealand Geological Survey Antarctic Expedition , 1957–58, for its proximity to...

 flowing in from the north.

The name is suggested by an association of ideas involved in the name Admiralty Mountains, and by the impression of power given by the great icefall in the lower portion of the glacier. Named by the New Zealand Geological Survey Antarctic Expedition

New Zealand Geological Survey Antarctic Expedition

The New Zealand Geological Survey Antarctic Expedition describes a series of scientific explorations of the continent Antarctica. The expeditions were notably active in 1957-58 and again in 1958-59. The 1957-58 expedition went to the Ross Dependency and named the Borchgrevink Glacier...

(NZGSAE), 1957-58.