Srahwee or Altóir is one of the finest megalithic tombs in Ireland and is a wedge tomb, wider and higher at the entrance and gradually tapering toward the rear. This type of tomb dates to the beginning of the Bronze Age, about 2,000 BC, when there was a final flourish of tomb building in Ireland. Its flat roof stone was used as an altar during Penal times, giving the tomb its local name, Altóir, meaning altar. A primitive incised cross appears on the upper surface at the south-eastern end. One hundred metres south-west of the tomb is one of the country’s best examples of an ancient forest, where the stumps of 4,500-year-old trees can be seen in the cutaway bog in and around the lake.