Underneath the communication masts on Three Rock Mountain are the three granite tors that lend the mountain its name. The centre one of these has three bullauns (a bullaun is a man-made depression)in its upper surface. These prompted Gabriel Beranger, an eighteenth century antiquarian, to speculate that they may have been used as sacrificial altars.
He wrote "This mountain has on its summit three large heaps of rock, piled one on another, and seen at some miles distance, from which the mountain takes its name. I take them to be altars on which sacrifices were offered....... I have copied every stone as they are fixed, and the regularity which is observed in piling them convinces me that they are the work of man, as they could not grow in that position...... The extensive summit of this mountain, the parched ground and its solitude, make it the most awful spot I had ever seen."
It would be interesting to get his views on the mountain as it now is!
Parking is plentiful at N53º 15.221 W 006º 14.798 - the walk to the cache is about 15 - 20 minutes.