The name Eldborg translates to english as Fire Castle. Eldborg is a dormant volcano today but it's most active period is dated back to 5000-8000 years ago when a 32 square kilometers area got covered by a thick layer of lava. The latest eruption in this spatter cone happened around twelve hundred years ago and was actually mentioned in the Book of Settlement in Iceland.

The perfectly symmetric, oval formed crater is 50 meters deep but 200 meters is diameter. Walking on the surface of this majestic natural creature makes you feel like it was almost fresh.

https://hiticeland.com/places_and_photos_from_iceland/eldborg