Gaer

Overlooking the Marteg Valley north of Rhayader, this rounded summit embodies the quiet, rolling character of the Radnorshire hills. It provides a straightforward, grassy climb that rewards walkers with a surprisingly expansive sense of isolation and a clear perspective of the Cambrian Mountains rising to the west.

• •The name is a Welsh term for a fort or stronghold, typically indicating the site of an ancient defensive enclosure or a strategic lookout point.
• •Its summit offers a broad view across the upper Wye Valley, with the distinct ridges of the Elan Valley hills and the remote Plynlimon massif visible on the western horizon.
• •Being classified as a Hump, the hill possesses a prominence of at least 100 metres, ensuring it stands out as a significant landmark in the local landscape between Rhayader and Llanidloes.
• •While the name suggests a mighty fortress, a modern visitor is far more likely to be greeted by a solitary sheep and a stiff breeze than any ancient garrison.