Burnt mound, Annagh, Co. Mayo
Co. Mayo |
Ritual/Ceremonial
Beneath a forestry plantation on sloping ground near Annagh in County Mayo lies a prehistoric site that was completely invisible until someone dug a test trench.
No earthwork, no raised ground, no surface clue of any kind announced its presence; the monument had simply vanished into the soil and waited.
Burnt mounds are among the more enigmatic features of the Irish archaeological landscape. They consist of accumulations of heat-shattered stone and charcoal-rich soil, and are generally understood to be the debris from repeated cycles of heating stones and plunging them into water, perhaps for cooking, bathing, or industrial processes. This particular example came to light in 2010 during pre-development archaeological testing, and what the trench revealed was a spread measuring roughly eleven metres north to south and nine metres east to west, with two smaller ancillary deposits sitting to the east and west of the main concentration. The excavation, recorded under licence 10E0483 and reported by Delaney in 2011, did not fully excavate the mound; it was preserved in place beneath the ground. When the site was inspected again in 2016 ahead of forestry development, there was still nothing visible at the surface. An exclusion zone now protects the monument, though it remains, for all practical purposes, a site defined entirely by what lies underneath rather than what can be seen.