A wetland to the north of the Kjölur area, in the central highlands of Iceland. There are extensive marshes/mires of sedge (Carex, Eriophorum) overlying permafrost, and eroded gravel areas. The ownership of the highlands is not resolved, but farmers hold grazing and fishing rights. The main land-use is grazing.
Hundreds of Anser brachyrhynchus moult in álfgeirstungur. Not much information on birds is available for the area.
BirdLife International (2021) Important Bird Areas factsheet: Gudlaugstungur-Álfgeirstungur. Downloaded from http://www.birdlife.org on 14/04/2021.