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well as dividing the year into four quarters. At the time of winter solstice, two light shafts, one to each side, frame the petroglyph, moving down the sides of the spiral. But, at winter solstice, when the sun is at its lowest midday position in the sky, the petroglyph is free of sunlight.
This specific movement of light daggers, oriented to the height of the midday sun, told the "Ancient Ones,” who prospered from 800 to 1250 A.D., the time of year.
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