🇺🇸 United States · Earthwork
Rock Hawk Effigy Mound
Woodland–Archaic 1000 BCE–1000 CE · Woodland peoples
30-m quartz hawk effigy on Oconee River, paired with Rock Eagle.
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Tagsquartz
4 places carry this tag, across every kind and continent it appears in.
🇮🇪 Ireland · Megalith
Neolithic (c.3200–2800 BCE) · Boyne Valley Passage Tomb tradition
Kilkenny dual-passage tomb with lavish megalithic art, aligned to both midwinter sunrise and sunset.
🇫🇷 France · Megalith
Late Neolithic · Western Brittany Neolithic (Océan Atlantic Megalithic)
Crozon's triple stone rows — 72 menhirs (to 2.1 m) in three 200 m parallel alignments near Camaret.
🇬🇧 United Kingdom · Megalith
Early to Middle Bronze Age · Penwith Bronze Age
19-stone oval circle (24.4×21.9 m) with rare 2.7 m quartz-veined central standing stone and cist.
🇺🇸 United States · Earthwork
Woodland–Archaic 1000 BCE–1000 CE · Woodland peoples
30-m quartz hawk effigy on Oconee River, paired with Rock Eagle.