Fantans hög, Offering cairn in Träkvista, Ekerö, Sweden.

Fantans hög is an offering cairn on a ridge beside Ekerövägen west of Träkvista on Ekerö. It is a mound of dry twigs and branches that people still add to, and beneath it excavations in 1947 found a stone setting with 23 coins, the oldest from 1577 and the youngest from 1938.

Excavations in 1947 found a stone cairn beneath the mound with 23 coins, the oldest from 1577 and the youngest from 1938. Burnt human bone found there was radiocarbon-dated by Historiska museet in 2001 to 500–100 BC, pointing to a pre-Roman Iron Age grave that the 1947 dig did not record. The tradition around the spot is traced back to the 14th century.

The name comes from the legend of Fantan, a woman said to have murdered her husband and been stoned to death on this ridge; the old word fant meant servant or vagrant. Passers-by still lay a dry twig, a stone or a coin on the cairn to be spared mishaps on their journey, and the tradition is traced back to the 14th century.

The mound is easily accessible on foot and situated in an area open to pedestrian traffic with views across the local surroundings. Wear sturdy shoes as the ground can be uneven, and the surface becomes slippery when wet.

The 1947 excavation found a stone cairn beneath the twig heap with 23 coins, the oldest from 1577 and the youngest from 1938. Burnt human bone found there was radiocarbon-dated by the Historical Museum in 2001 to 500–100 BC, hinting at a pre-Roman Iron Age grave that the 1947 dig did not notice.