"I'm sure they have their finger on the pulse of activity in the area..."

I'm doubtful of that.  They came to Arizona by taking over the drilled-out Rosemont project of Augusta Corporation, which they bought for 667 million Canadian in '14.  They then faced stiff resistance from the anti-mining community, who thought their views would be spoiled while looking in that direction from Tucson, and the Forest Service was listening to them.  Then, while trying to advance that project into the development phase, they discovered nearby the three other deposits I referenced.  These are on flat land owned in fee, so there will be little resistance from regulators and citizens in general.  

But, you could be correct in regards to the possibility that their plate may be full for now.