Slemish

In Explore September 23, 2009, #407.

"Slemish (Irish, Sliabh Mis) is the remains of the plug of an extinct volcano near Ballymena, County Antrim, Northern Ireland
Its distinctive appearance—its upper reaches are very steep and rugged, in contrast to the tidy fields on its lower westward-facing slopes and the relatively flat bogland to the east—causes it to dominate the landscape for miles in all directions.
Tradition holds that Saint Patrick, enslaved as a youth, was brought to this area and tended herds on Slemish, and that during this time he found God. (However, another theory contends that he spent this period in the west of Ireland...)
In later times, it was the site of a United Irish camp during the 1798 rebellion in County Antrim." - Wikipedia