Jacka Glacier is a 0.8 miles (1.3 km) long 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...

 which flows northeast from Hayter Peak

Hayter Peak

Hayter Peak is a peak, 565 m, standing 0.2 nautical miles west of Mount Olsen along the backbone of Laurens Peninsula, at the northwest end of Heard Island. The peak was surveyed in 1948 by the ANARE , and named by them for Alfred J. Hayter, warrant officer on the expedition ship HMAS Labuan....

 and terminates in icefalls opposite Vanhoffen Bluff

Vanhoffen Bluff

Vanhoffen Bluff is a rocky bluff immediately east of Jacka Glacier on the north coast of Heard Island. The German Antarctic Expedition under Drygalski, during its 1902 investigations of the area, applied the name Kap Vanhoffen to a cliffed feature about 1.5 nautical miles to the northwest, near...

 on the north side of Heard Island

Heard Island and McDonald Islands

The Heard Island and McDonald Islands are an Australian external territory and volcanic group of barren Antarctic islands, about two-thirds of the way from Madagascar to Antarctica. The group's overall size is in area and it has of coastline...

 in the southern Indian Ocean

Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...

. The glacier appears to be roughly charted on an 1860 sketch map compiled by Captain H.C. Chester, an American sealer operating in the area during this period. It was surveyed in 1948 by the ANARE (Australian National Antarctic Research Expeditions

Australian National Antarctic Research Expeditions

The Australian National Antarctic Research Expeditions is the historical name for the Australian Antarctic Program administered for Australia by the Australian Antarctic Division .-The ANARE Name:...

), and named by them for Fred J. Jacka, expedition physicist.

External links

• Click here to see a map of Heard Island and McDonald Islands, including all major topographical features