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Spy Cave — Wikipedia
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Spy Cave (French: Grotte de Spy) is located in Wallonia near Spy in the municipality of Jemeppe-sur-Sambre, Namur Province, Belgium above the left bank of the Orneau River. Classified as a premier Heritage site of the Walloon Region, the location ranks among the most significant paleolithic sites in Europe. The cave consists of numerous small chambers and corridors.
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