Sliabh an Iarainn

Sliabh an Iarainn is a large hill in County Leitrim, Ireland, its shape evolving to its present form by ice age glaciers moving southwest over millions of years, the Morainic drift heaping thousands of drumlins in the surrounding lowlands. Irish cultural folklore records strong association with the mythological "Tuatha De Dannan". Sliabh an Iarainn is an important natural heritage site with exposed marine and coastal fauna of paleontological interestEtymologyThe name, originates from an appreciation Iron ore deposits are present. Boate (1652) said "". Sliabh an Iarainn was anciently named "", the "mountain of the Conmaicne Rein in Connacht". The Irish name spelling is commonly used, though pronounced and corrupted as "Slieve-An-Ierin".