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310-Million-Year-Old Stones with Fossils
The Castle Hill is, of course, much older than the castle that adorns it. The Sava Folds, which include the Ljubljana Castle Hill, were formed in the Upper Carboniferous, more than 300 million years ago, in a river delta with a warm tropical climate near the equator. It sounds almost unbelievable. Take a peek into the ancient past witnessed by the fossils that have been found.