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
Rushmore University consider degrees from this supplier to be substandard unless each degree program is evaluated in detail by an external evaluator acceptable to ODA. The Maine Department of Education and State of Michigan also list Rushmore as non-accredited. In August 2009, Rushmore announced that it was seeking accreditation from the Chartered Management Institute (CMI). This was announced in the August 2009 Rushmore newsletter. The Rushmore June 2012 newsletter reported that in April 2012 Rushmore had obtained CMI Recognised Center status, including approval for several Rushmore programs. Rushmore University Rushmore University is an unaccredited institution of higher learning offering master's and doctoral