Due your own due diligence in Sinker Tunnel by going there yourself and viewing what's there.
Why?! I can see more in the pictures... and looking at the entrance wont tell me how much gold is in the ground.
Investors get screwed using that type of DD to validate buying a penny stock. Remember all the glowing reviews and pictures from the shareholders meetings? All of those buyers are deep in the red now... There is more to mining than having a hole in the ground. Experienced management and enough $$$ comes to mind.