Morlais Castle

Morlais Castle is a 13th-century fortress dramatically positioned atop an isolated limestone hill above the Taf Fechan valley, two miles north of Merthyr Tydfil in Wales, commanding views of the Brecon Beacons and surrounding peaks. The castle's construction began when Gilbert de Clare, Earl of Gloucester, initiated building on disputed land, leading to a royal intervention by King Edward I in 1290. Despite significant conflict and capture by rebels in 1294, fragmentary remains survive including one intact room from the main keep, a vaulted basement accessible beneath lost tower structures, and low walls defining the original castle perimeter. The site offers moderate hiking with spectacular panoramic views and archaeological interest for visitors exploring Welsh medieval history.