The rock is 600 million years old and the type of rock is Arkose. It is 3.6 km long 2.4 km wide its very big.
Its outstanding because it is the biggest rock in the world it is huge, its a really nice place to visit and see from space too it looks so cool but weird at the same time. Its awesome they just banned the hiking too, I really wish i could of went when it was open. Before it was banned it was 25 dollars to go on that's really not that much for a life changing experience.