You have to factor in All the tons they "could" find in the mountain at the Bayhorse Silver Mine!!!!
Think of the "future" with the Bayhorse Silver Mine, not just today/very near future.
The mine could extend 2000 feet or MUCH MORE into the mountain. Watch the past November 2016 silver summit interview with Graeme O'Neill / Morgan. I think that's where it was mentioned.
JMO Do your own due diligence.