Franz Josef Land is dominated by glaciation, which covers an area of , or 85 percent of the archipelago. The glaciers have an average thickness of , which would convert to . This would alone give a eustatic rise in sea level should it melt. Large ice-free areas are only found on the largest islands, such as the Armitage Peninsula of George Land, the Kholmistyi Peninsula of Graham Bell Island, the Central'naya Susha of Alexandra Land, the Ganza Point of Wilczek Land and the Heyes Island. Most of the smaller islands are unglaciated.