In conjuction with the ringing rocks, Pa location, there’s a town nearby called Bangor that’s home to a megalithic site called Columcille park. It was a sacred site to the natives and the masonic also built a small (possible observatory) there long ago. It’s privately held and very few people know about it. This could be some of the energy vortex that’s being felt at ringing rocks or it could be totally seperate. Either way you may want to look into it. – Nichole