Knockanora

This cairn is on top of Knockanora, a prominent hill at 420m in North Tipperary not far from Borrisoleigh. I started walking up from S004709 which is the rear of a stone farm-house. You can follow a track approximately 3/4 of the way and then I followed a sheep track through the heather/brush.
The cairn itself isnt massive (approx 2m high) and a shelter has been built on top of it. There is also a trig point constructed on top of it too.
It is not listed in the Arch Inventory for North Tipp. Any information about its antiquity would be appreciated.