"A granite moon balanced on a stone boat, aligned with a lunar cycle that repeats every nineteen years"
Pena Molexa
Narón, Galicia, Spain
On a hillside above the parish of O Val in Naron, Galicia, a multi-ton granite boulder shaped like a lunar disc rests between boat-shaped supporting stones. Known as Pena Molexa, the monument aligns with the rising of the full moon on the summer solstice every nineteen years, marking the Metonic cycle with a precision that implies sustained astronomical observation across generations.
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Quick Facts
Location
Narón, Galicia, Spain
Coordinates
43.5689, -8.2207
Last Updated
Feb 17, 2026
Learn More
A megalithic monument of debated age in the ancient Trasancos territory of Galicia, interpreted by Andre Pena Grana as a Celtic tribal altar central to enthronement and funerary ceremonies. Annual San Xoan community recreations keep the legends alive.
Origin Story
According to the legends of O Val, a Moura of supernatural beauty resides beneath the great stone. On the night of San Xoan, she emerges to display a treasure of golden coins, jewels, collars, diadems, and weapons of ancient warriors. She challenges young men to choose the most valuable piece. Those who reach for the heaviest gold find the Moura vanishing and the gold turning to coal in their hands. Andre Pena Grana interprets this as a survival of the Celtic concept of sacred sovereignty: the Moura tests whether the candidate is worthy to receive the power of the land, and those motivated by greed fail.
Key Figures
Andre Pena Grana
Historian, archaeologist, archivist of Naron, and Dean of the Galician Institute for Celtic Studies. The leading scholar on Pena Molexa's significance within Celtic institutional archaeology.
Spiritual Lineage
The monument belongs to the Atlantic European megalithic tradition, with possible connections to the broader Celtic cultural complex that included sacred kingship, mother goddess worship, and astronomical observation. The nearby San Andres de Teixido pilgrimage tradition, where it is said that 'to San Andres goes in death whoever did not go in life,' reflects the continuity of pre-Christian sacred landscape traditions in northern Galicia.
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