I would like to understand better the relationships, similarities and differences, between the stratigraphy (sequence of geological layers) found at Bisbee, Rosemont, and at Hay Mountain, and the reasons, if known, for the original mis-mapping that placed the major potential ore-bearing stratum deeper at Hay Mountain than it is now known to be. How was the mistake discovered, when and by whom? Considering differences in depth, what is the practical significance of the new information? Why would it matter to a potential investor?