Pine Mountain is argued to be the largest monolith in Australia at 1.5 times bigger than Uluru. The gigantic red granite monolith was uplifted to its present height of 1062 m more than 2 million years ago. Since then erosion has highlighted the steep eastern side, established several creeks, and in the upper area, created small rock pools which contain shrimp and tadpoles despite annual drying, and large granite marbles 2-3.5 m in diameter.