Other Forms of the Name with authority source (if provided) in italics:
Rock No. 1 Trigonometrical Department
Situation:
Situated S. of the townland of Letterdiskert
Townland Information
What is a townland?:
A townland is one of the smallest land divisions in Ireland. They range in size from a few acres to thousands of acres. Many are Gaelic in origin, but some came into existence after the Norman invasion of 1169