Derryvree’s Interrupted Waters
Archived: 20 September 2026
Around 31,079 BCE, Ireland cannot be reconstructed as a year-specific historical setting. Derryvree, County Fermanagh, preserves freshwater sediments between glacial tills, indicating a locally ice-free, cold wetland landscape during late MIS 3, although its broad dates cannot define island-wide conditions. Vegetation suggests open tundra-like terrain with pools, sedges and hardy plants. Castlepook Cave, County Cork, contains a long, mixed faunal record including mammoth, reindeer, predators and lemmings. A possibly stone-cut reindeer femur raises, but cannot confirm, brief Upper Palaeolithic human presence. Later glacial expansion repeatedly buried or destroyed evidence across the island, requiring cautious interpretation of Ireland’s shifting ecological frontier.