Torsburgen

Torsburgen, Tors borg or þors borg ("Thor's fort/castle") are the remains of an ancient hillfort in Kräklingbo on the Swedish island of Gotland in the Baltic Sea. The fort is approximately , was constructed in the 1st-4th century and in use until the 12th century. Situated on a plateau hill it is protected by high cliffs and wall sections, almost long in total. The fort is featured in the Gutasaga. The plateau is also a nature reserve.

== Geography == Torsburgen is situated on, and encompasses the whole of, an eponymous plateau hill in the central east part of Gotland. With steep cliffs in the west, north and east, it rises above the surrounding flat landscape. About 10,300–10,800 years ago it was a low island in the Baltic Ice Lake. The motions of that lake deposited gravel embankments in the southwest part of the plateau. Inside the embankments, now walls, has formed a small mire called Torsburgsmyr.