The Slieve Bloom
The Slieve Bloom rises to the east of Clareen, a mountain range that marks the border between Offaly and Laois. The highest point, Ardagh, reaches 527 metres. The range is ancient—part of the Old Red Sandstone plateau that was shaped by glaciers in the ice age. The ridgeline can be hiked for 25 kilometres. From Clareen the mountains are a constant presence on the horizon.