Archaeological site

Tomen yr Allt

United Kingdom Llanfyllin scheduled monument
Tomen yr Allt
Tomen yr Allt · Wikipedia

About

Tomen yr Allt (or Domen yr Allt) was a Medieval motte and bailey defensive castle near Llanfyllin in Powys, Wales. "Tomen ar hallt" is modern Welsh for "mound on the wooded hillside."