Gullkistugjá

Background

History & Background

Gullkistugjá formed as part of the volcanic and tectonic activity associated with the Reykjanes Peninsula, where the Earth’s crust is gradually stretching and fracturing. The fissure developed over time as lava flows cooled and the ground shifted, creating cracks and fracture zones across the surface. Located near Helgafell above Hafnarfjörður, it is part of a wider system of geological features that reflect Iceland’s position along the Mid-Atlantic Ridge. Although not developed as a major tourist site, Gullkistugjá remains an important natural feature that illustrates the long-term geological processes shaping the region.

Gullkistugjá (Helgafell) is a prominent volcanic fissure located west of Helgafell above Hafnarfjörður, within a rugged lava landscape shaped by past eruptions on the Reykjanes Peninsula. The feature forms part of a long fracture system that cuts across the terrain, extending through the southeastern part of Helgafell and continuing southward through the surrounding lava fields. These fissures were created by tectonic movement and volcanic activity, which gradually split and reshaped the surface of the land over time. The surrounding area is characterized by uneven lava formations, cracks, and moss-covered rock, providing a clear view of Iceland’s dynamic geological processes. One of the most notable nearby features is Skúlatún, a small, unburnt grassy mound that stands in contrast to the otherwise dark and barren lava field. This isolated patch of vegetation highlights how soil and moisture can accumulate in sheltered spots, allowing plant life to develop even in challenging volcanic environments. Gullkistugjá is less visited than more famous geological sites in Iceland, offering a quieter and more remote experience for those exploring the trails around Helgafell. The area is accessible on foot and forms part of a wider network of walking routes above Hafnarfjörður. For visitors, it provides an opportunity to observe the interaction between tectonic forces, volcanic history, and gradual ecological development in a landscape that continues to evolve over time.