Black Cattle Ultra Gwartheg Duon
Cardiff, United Kingdom • 23 Aug 2025
Black Cattle Ultra Gwartheg Duon is a two-distance mountain ultra in South Wales organized by Ridge Runners. Entrants can choose 44 miles (71 km) starting at Llanthony Priory in the Black Mountains, or 33 miles (53 km) starting in Abergavenny. Both routes follow the Cambrian Way to Cardiff, with Castell Coch near the finish.
Expect mountains, wooded vales, and picturesque villages as you traverse a demanding but rewarding course. The 44-mile option includes high moorland and rugged terrain; the 33-mile route starts with a big Blorenge climb and threads through Pontypool, Risca, and Cefn Onn ridge to the capital. A community, not-for-profit event, praised for its atmosphere. Visit the organization's website for the most recent information.