Bla Jungfrun Trolleborg

The largest stone labyrinth in Sweden occupies Bla Jungfrun ('Blue Maiden'), a sacred island in Kalmar Strait where ritual activity dates back 11,000 years. Quartz shards from approximately 8500 BCE prove the island's significance predates agriculture. The island's granite bedrock, polished smooth by glacial action, creates a natural resonance chamber. Carl Linnaeus visited in 1741 and recorded local superstitions about witchcraft. Swedish law forbade removing anything from the island — a taboo extending thousands of years. At 343.98° Giza bearing, Bla Jungfrun's labyrinth connects to the Baltic sacred island network. The combination of quartz geology, ancient ritual use, and labyrinth construction makes this one of Scandinavia's most archaeologically significant sites.