Grábrók Crater is the larger of three craters in a volcanic fissure belonging to the volcanic system of Ljosufjoll. Grábrók is located in the fjord of Borgarfjörður in West Iceland.

Grábrók Crater is the larger of three craters in a volcanic fissure belonging to the volcanic system of Ljosufjoll. Grábrók is located in the fjord of Borgarfjörður in West Iceland.