A sheep shelter, round in shape and constructed skilfully from lava rocks.

Situated 2-3 km from the former parsonage Kalfatjorn in a direct line from there to Mt Dyngja.

It is about two metres high, 8 m in diameter, and 35 m in circumferance. The ground inside it is flat and covered with grass. No sources reveal its age, but it is considered to be a few centuries old. According to the legend, a man named Gudmundur built it for the reverend at Kalfatjorn.

He worked elaborately at the construction, collected stones from the surrounding area to have a large selection to chose from to fit them together as perfectly as possible. He planned to close it with a cone shaped roof of stones, but the reverend envisioned it higher and more prominent than his church´s steeple and stopped the construction work. The stone mason left it exactly as we see it today. It was declared inviolate in 1951.

To get here, park at a designated pull-off point (there should be a "Staðarborg" sign near the pull-off point) and walk over lava rock for about 30 minutes.