The area to the south east of Caban Coch Reservoir.
There are plenty of Cairns, some are very well preserved cairns with some having central cists.
Gro Hill is a short walk from Crugiau Bach Stone Circle and Cairns, walk fron The Elan
Valley vistors centre up past Cabin Coch Dam and Nant Y Gro Dam to get to Gro Hill
Map Ref SN925 620
Tel: 07870954997
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