There are dozens of not hundreds of economic deposits of gold left in the Ruby
There is zero evidence there is any economic gold at Ruby.
By definition, "pockets" are not economic. If you could wave a magic wand and just extract the "pockets", perhaps. But the massive cost of infrastructure and mining everything around them that contains nothing to get to those "pockets" makes the gold uneconomic.
Which is why Ruby, as well as all the other historic mines in the area, have been largely abandoned for over 70 years. There is absolutely nothing of value there.