Marked on the 1839 and 1925 eds of the OS 6-inch map, and described in italic lettering as Teberwonaghan on both. According to UaDubhgaill (1925, 97-8) this is properly Toberonoghan or Tobar Onchon. Onchu was an early saint renowned for collecting relics

Monument Type: Ritual site – holy well

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