long view curving serpent mound prehistoric earthworks ohio |
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| navigate by keyword : agriculture american history ancient astronomy anthropology archaeology background beautiful built last burial mound cemetery countryside culture dramatic sky clouds earthworks engineering environment farm field grass great serpent green growth historical place hopewell journey land landscape meadow city earth native design natural nature ohio outdoor plant prehistoric art rural sacred space science season spring summer |
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| Side view closeup of the long curving body of the snake at Serpent Mound in Ohio with observation tower, the largest effigy mound in the world. Ridges of the prehistoric Native American engineering earthwork art are clearly visible covered in green grass with trees and dramatic sky background and no people. |
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