Regarding Northstar, does the company have leftover ore on top of the hill from the previous miners that is producing 3gm/ton?

Two pluses SFMI has going.....

1. Obviously leftover dump tailings which they considered when entering the game to help offset further borrowing and dilution.

2. Sinker Tunnel is already dug out and ready to go. If SFMI had to dig a hole in the mountain 6000 feet long, it would cost them $230 million dollars. This project would have never started.

Do these two pluses compare to Northstar?