Black Mountain

The Black Mountain in Queensland, Australia is pretty much just a giant pile of granite boulders, some the size of a house. The absence of soil between the boulders and rocks create a maze of gaps and passages, which can be used to penetrate inside the mountain. There are massive internal caves systems that change over time due to collapses and therefore the mountain hasn’t been mapped yet. The mountain whistles and moans in the wind and locals don’t get TV or radio signals. Visitors are forbidden to climb or even approach the mountain. Few people have ever explored the caves and come out alive.