Pen Twyn Mawr

About Pen Twyn Mawr

Pen Twyn Mawr is a delightfully uncrowded shoulder in the Black Mountains that offers more solitude than actual height. At 658 meters, it’s perfect for those who enjoy expansive, grassy ridges and the distinct feeling that they might be the only human for miles—or at least the only one not lost.

Key Statistics

Find It

Did You Know?

• •The fell sits within the historic county of Brecknockshire, an area home to over 250 prehistoric scheduled monuments including Neolithic burial chambers and Bronze Age stones.
• •Its position on the eastern edge of the Black Mountains offers a stunning aerial perspective of the 12th-century Llanthony Priory ruins tucked in the valley below.
• •The terrain is dominated by Old Red Sandstone, which creates the characteristic flat-topped silhouettes and 'hogsback' ridges found throughout this section of the National Park.
• •Navigating the plateau in the mist is an excellent way to test your patience, as the subtle terrain makes every sheep-track look like a definitive escape route.
• •The summit cairn is so understated that if you blink while checking your map, you may accidentally hike halfway to Hereford before realizing you have actually peaked.