Castlepook’s Mammoth Bones
Archived: 21 September 2026
Labelled 30,987 BCE, this period lies roughly 33,000 calibrated years before present, during the unstable Late Pleistocene rather than a precisely datable Irish year. Derryvree, County Fermanagh, preserves wetland sediments between glacial tills, revealing treeless, cold tundra vegetation, pools, insects, sedges and hardy plants during an ice-free interval. Castlepook Cave, County Cork, yielded mammoth, reindeer, giant deer, bear, wolf, Arctic fox, lemming and hyaena remains, indicating changing connections with wider Europe. A possibly tool-marked reindeer bone may suggest early human presence, but lacks secure context. No evidence confirms settlement, society, routes or island-wide conditions at this specific date with certainty.