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 Carmel State Forest trail is maintained by the Vermont Association of Snow Travelers. The forest was a gift to the State of Vermont in 1956 from Governor Redfield Proctor. It is managed by the Vermont Department of Forests, Parks, and Recreation. Mount Carmel State Forest Mount Carmel State Forest covers in Chittenden, Vermont in Rutland County. Located in the Green Mountains, the forest's elevation ranges from 2380 to 3365 feet at the summit of Mount Carmel. There is no road access to the forest, which can only be accessed by the New Boston Trail, a side trail to the Long Trail. The Long