Stone Mountain, though often called a pink granite dome, actually ranges in composition from quartz monzonite to granite and granodiorite. This misconception is most likely a result of misrepresentation by granite companies and early park administration. Numerous reference books and Georgia literature have dubbed Stone Mountain as "the largest exposed piece of granite in the world". The Stone Mountain pluton continues underground 9 miles (14 km) at its longest point into Gwinnett County. This magma solidified to form granite within the crust five to ten miles below the surface. It formed as a result of the upwelling of magma from within the Earth's crust. Primarily composed of quartz monzonite, the dome of Stone Mountain was formed during the formation of the Blue Ridge Mountains around 300–350 million years ago (during the Carboniferous period), part of the Appalachian Mountains. Stone Mountain is a pluton, a type of igneous intrusion. Stone Mountain, once owned by the Venable Brothers, was seen from the outset "as a memorial to the Confederacy." Stone Mountain Park officially opened on Ap– 100 years to the day after Lincoln's assassination, although the park had already been in use for a few years. The carving, completed in 1972, depicts three Confederate leaders, Jefferson Davis, Robert E. Stone Mountain is well known for not only its geology, but also the enormous rock relief on its north face, the largest bas-relief artwork in the world. At its summit, the elevation is 1,686 feet (514 m) above sea level and 825 feet (251 m) above the surrounding area.
The park is owned by the state of Georgia and is currently managed by Herschend Family Entertainment.
The park is the most visited tourist site in the state of Georgia. Outside the park is the small city of Stone Mountain, Georgia.
Stone Mountain is a quartz monzonite dome monadnock and the site of Stone Mountain Park, 16 miles (26 km) east of Atlanta, Georgia.
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