Geograph - photograph every grid square

On the former Mid-Wales Railway. The picture is taken from the spot of the Elan Valley Junction, the beginning of the Elan Valley branch. There is no public access to the tunnel, which is now part of a small Nature Reserve of the Radnorshire Wildlife Trust. The Reserve was created to protect the bats which use the tunnel to hibernate. The Elan Valley Cycle way, which mostly follows the trackbed of the Elan Valley Branch, climbs over the hill to rejoin the trackbed at the North side of the tunnel.