A remarkable example is located near Crancreagh Bridge in County Offaly, which marks the position of what must have been the north-western edge of ancient Lough Boora, on whose shores the first people of the Irish midlands camped in Mesolithic times 8,500 or so years ago. This ancient lake disappeared long ago, swamped by the growing expanse of bog, which buried not only the lake itself, but preserved the campsites of the early midlanders.
A notable illustration is situated near Crancreagh Bridge in County Offaly, indicating the location of what likely marked the north-western boundary of ancient Lough Boora, where early inhabitants of the Irish midlands set up camp around 8,500 years ago. This ancient lake has since vanished, submerged by expanding peat bogs that preserved not only the lake itself but also the campsites of the initial midlanders.