Easy, this isnt a thing that poped out of a BG hat/brainstorm.  JB established "his" MARK here decades ago.  If their is any good ore at Robbers-dunn dah dunn doneRoost,  it will likely be as deep as Resolution or deeper,,think sattelite discovery.  The only good thing that will come out of a deal at Robbers Roost is that JB is recognized once agin for Staking CLAIM to an asset.  The depth situation is a riddle?  JBs favorate Geology Friends did look over the property way back then and some factors were like roadblocks such as cost, depth and fighting with the famous crew from AZs only HOLLYWOOD tree huggers. Plus the lack of technology, So we get a blast but to and for what???????  To me it is FAR more questions than answers, and questions that need to be answered.