I am from City of Brisbane, Queensland, Austrailia
I am yet to see Black Mountain with my own eyes.
When I look at the photos it appears that someone has dropped those Black rocks from the air to fill in a hole that was once there. And why only that type of rock.
The aboriginies believe it is home to the Rainbow Serpent which goes back to ther creation story.
As for the Russian cauldrons and the event of 1908, I believe there is certainly a truth there waiting to be revealed.
Great work my friend. The world needs more people like youself. The truth of who we are and where we came from and where we are going lies in the very near future.