Hello all and thank you for replying, I have lived about two miles from the old copper mine all my life and know the area very well, just around the corner from Porth Y Rhwydau ( Cove of the nets ) are two ring bolts in the rocks and i was wondering if they were anything to do with shipping the copper ore from there, or are they anything to do with salvaging something from the ships that have come to grief there ( eg SS Missouri 1886.) There are hardly any signs of any work ever going on there except for the small drop down into Copper Mine Creek as there is stone work from the path to the creek floor, and if you look at an aerial photo you can see a round and rectangular shape in the ground above the area and also there is what looks like an entrance which is over grown with a small waterfall . It may be nothing to do with the mine. As for Porth Ryffudd which is about a mile along the coast i have never heard of copper mines there. There is at least one cave in Porth Y Rhwydau ( Low tide ) which goes in a good way and you can see brownish red bands on the cave walls. The copper ore there was of very high quality although it was only a small mine and i wonder how they got it from there as the road was only fit for horse ad carts in those days.
