Mount Rushmore community. Recent pine beetle infestations have threatened the forest. Mount Rushmore is largely composed of granite. The memorial is carved on the northwest margin of the Black Elk Peak granite batholith in the Black Hills of South Dakota, so the geologic formations of the heart of the Black Hills region are also evident at Mount Rushmore. The batholith magma intruded into the pre-existing mica schist rocks during the Proterozoic, 1.6 billion years ago. Coarse grained pegmatite dikes are associated with the granite intrusion of Black Elk Peak and are visibly lighter in color, thus explaining the light-colored streaks on the
Mount Cole State Forest Mount Cole State Forest The Mount Cole State Forest is in western Victoria, Australia, near the town of Beaufort. The forest is around Mount Cole, which formed 390 million years ago. The Indigenous Australians, the Beeripmo balug people, called it "Bereep-bereep", which means "wild". The forest covers an area of 12,150 hectares, including the forest around Mount Lonarch. The forest is on a plateau which is above grassy plains. The plateau is about 760 metres above sea level. High peaks in the forest include Mount Buangor (1,090 metres), Mount Cole (899 metres) and Ben Nevis (877 metres). The main trees