Excavations in 1901 recovered bones of the spotted hyena, which has been extinct in Ireland for thousands of years.
The caves provided a sanctuary for the legendary high king Cormac mac Airt, according to the Fenian Cycle.
Scientific analysis of the caves has provided critical data regarding Ireland's post-glacial environment and extinct animal populations.
The limestone chambers vary significantly in depth and accessibility, with some forming large, interconnected voids.
The mountain's distinct profile is visible from vast distances across County Sligo due to the prominent cave openings.
Keshcorran Caves consist of a series of 17 limestone chambers located on the western slope of Kesh Corann mountain in County Sligo. These caves are historically significant for the discovery of Pleistocene-era megafauna remains, including brown bear, arctic lemming, and spotted hyena. Archaeological excavations conducted in 1901 revealed artifacts ranging from the Neolithic period to the medieval era. The caves are situated at an elevation of approximately 200 meters above sea level, offering views over the surrounding limestone landscape. The site is associated with Irish mythology, featuring prominently in the tale of Cormac mac Airt, who was said to have been raised by a she-wolf within these caverns. The caves are formed by solution processes in the Carboniferous limestone, creating distinct natural tunnels accessible to the public. The site is maintained as an open-access natural heritage location with no formal gating or visitor center.
The entrance of the primary, largest cave looking outward toward the Sligo landscape provides the best framing.
Bring a high-powered flashlight or headlamp to explore the deeper chambers safely.
Park your vehicle at the base of the hill and be prepared for a steep, unpaved ascent across uneven pasture ground.
Check local weather forecasts as the slopes become slippery and treacherous in wet conditions.
Attempting the climb in rain or poor light, as the limestone path is steep and prone to slippage.
Wear sturdy, waterproof hiking boots with ankle support. Do not disturb potential cave-dwelling wildlife or move loose rock formations.
