Possible purposes of the Carn Euny fogou: ritual, storage, or refuge

September 07, 2026EnglandArchitectureShare

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Key facts

• A recess inside the beehive hut opposite its entrance aligns to catch the first rays of the midwinter solstice sun, suggesting possible ritual use as a sun altar
• The main tunnel runs northeast-southwest with a bend, and with both ends originally closed, it likely had no astronomical significance
• The subterranean structures were incorporated into the northern house of the settlement, possibly serving as an antechamber or to conceal the entrance from outsiders
• Underground structures may have served as food storage, functioning as an Iron Age fridge or stone-lined cellar, though damp conditions would have limited storage to dairy products, eggs, and meat
• The Greek historian Diodorus Siculus wrote that Iron Age people of ancient Britain stored grain in underground repositories
• The fogou may have served as a refuge during attacks, as the small creep entrance would have been nearly invisible above ground and could have hidden many people
• However, prolonged attacks would have turned the fogou into a death trap if the entrance was discovered
• Known fogous in the UK are each associated with a specific overlying settlement, and their function may have changed over time

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