Round tower, Glendalough

Glendalough, Gleann dâ Loch, means the "valley of the two lakes".  This valley was carved out by a glacier during the ice age.  There are now two lakes here and many ancient remains.

There is a round tower dating from the 10th  and 12th centuries. The tower is some 103 ft (31 metres) high.  It was used as a bell tower to call pilgrims from afar.  It was also used to hide in when the area was under attack .  To this end the door is about a third  of the way up the tower and was reached by a ladder that could be pulled up to stop others entering.
It was recapped in the original mica slate in 1876.  


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