"geoglyph : (chiefly archaeology) A large-scale drawing or image made on the ground by arranging..."

“geoglyph : (chiefly archaeology) A large-scale drawing or image made on the ground by arranging lines of stones, scratching the earth, etc., and often only fully visible from a distance or the air.”

- https://en.wiktionary.org/wiki/geoglyph#English

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