 The circle is also known as Black Marsh, Hemford and Marsh Pool Circle.There are holes drilled in some of the stones, but these date from a much later period, when local miners would use the stones during wedding celebrations by filling the holes with gunpowder and setting it off.The Hoarstones may have a connection to the similar circle nearby at Mitchell's Fold, and a third circle formerly to the south known as the Whetstones.