Derryvree’s Summer Waters
Archived: 26 September 2026
Abstract
At 30,619 BCE, Ireland cannot be described through events or communities, but Derryvree, County Fermanagh, preserves evidence from the wider Late Pleistocene interval. Freshwater organic sediments between two tills show that glacier-free conditions supported pools, wet ground, mosses, sedges and tundra plants before ice returned. The landscape was open, cold and seasonally severe, not forested. Cave deposits at Castlepook indicate a diverse Ice Age fauna, including mammoth, reindeer and predators, although their remains span long periods. A cut-marked reindeer femur may indicate brief human butchery, but confirms neither settlement nor occupation. Sea routes, ice extent and human movements remain uncertain.