Gilwern Hill, Powys

Gilwern Hill is a hill about 3 mi / 5 km southeast of Llandrindod Wells in the county of Powys, Wales.

The hill is composed from a range of lower and middle Ordovician volcaniclastic rocks which form a part of the Builth Inlier.

Palaeontologists Pete Lawrance and Brian Beveridge have spent 30 years examining fossils from a privately owned limestone quarry on the hill.

Amongst fossils so far identified at this location are the trilobites Meadowtownella, Bettonolithus, Protolloydolithus and Anebolithus together with Conulariida, Iocrinus, Clonograptus and starfish[1] There are two prehistoric stone rows at the southern end of the hill, each with a large stone, more than 2m high, at one end.

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