Austfonna is an ice cap located on Nordaustlandet in the Svalbard archipelago in Norway. Covering an area of 7,800 km²,^[1] it is Europe's third-largest glacier by area and volume, after the Severny Island ice cap of Novaya Zemlya, Russia, and Vatnajökull in Iceland.^[2] The combined area of Austfonna and the Vegafonna ice cap is 8,492 km².^[3]

Austfonna
Austfonna on the island Nordaustlandet. Sørfonna is part of Austfonna, while Vestfonna is a separate glacier.
Location	Svalbard, Arctic Ocean, Norway
Coordinates	79°47.0′N 24°39.8′E / 79.7833°N 24.6633°E / 79.7833; 24.6633
Area	7,800 km2 (1,927,000 acres) (including Vegafonna)

Austfonna has a thickness of up to 560 metres (235 meters average thickness), and is 200 km in circumference. The ice dome reaches an elevation of 783 meters above sea level.^{[citation needed]}

The southern third of Austfonna is sometimes called Sørfonna, which is a separate ice cap, separated from the main part of Austfonna by a long, ice-filled depression, and forming a separate crestal dome.^[4]

Vegafonna ice cap in the southwest is also connected to Austfonna proper, specifically to Sørfonna, and is separated from it by Erica Valley.^[4] Vegafonna also forms a separate dome. Immediately west of Vegafonna is Glittne ice cap,^[4] which is considered part of the former.^{[citation needed]}

Vestfonna in the northwest of the island is a totally separate ice cap (the third largest of Svalbard and Norway).^{[citation needed]}