In fact, the three outcrops are tors: natural geological features produced by the gradual process of weathering. Today, the summit is dominated by the many radio masts and towers that use the site to broadcast their signals across the Dublin area below.
In actuality, the three rock formations on the summit are tors, which are created through the natural process of erosion over time. As a result, the peak is now largely dominated by a collection of radio masts and towers that serve to broadcast signals to the surrounding area in Dublin.