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Tagsdolerite
3 places carry this tag, across every kind and continent it appears in.
🇧🇼 Botswana · Ancient city
Claim 1885 discovery of 'ancient' ruins (claimed 1000+ years) · Claimed unknown builder 'similar to Zimbabwe' / Phoenician by Farini
Farini's 1885 'Phoenician' half-bow walls in Kalahari — 1964 proven dolerite sill natural ridge.
🇬🇧 United Kingdom · Earthwork
Iron Age (c.500 BCE–100 CE) with Bronze Age cairn · Iron Age Welsh (Demetae) / Early Medieval
Rocky tor-top hillfort (343 m) above Newport — stone-rampart contour fort with hut circles on Mynydd Carningli.
🇬🇧 United Kingdom · Megalith
Late Neolithic (c.3000–2500 BCE) · Welsh Late Neolithic (Preseli Groove)
Gors Fawr (Late Neolithic c.3000–2500 BCE) is a 22-m perfect circle of 16 Preseli dolerite pillars, 0.6–1.8 m high, on moorland at Mynachlog-ddu beneath the Preseli ridge that sourced Stonehenge…
