Only a few miles north of the Fall Line, Pine Mountain's prominent hills stand anomalous in the gently rolling southern Piedmont of western Georgia and eastern Alabama. Within the Pine Mountain area lies Warm Springs, site of Franklin Roosvelt's Little White House.
Trending slighly north of east, the Pine Mountain area is bounded on the north and south by faults and/or shear zones. Pine Mountain's core exposes metamorphic rock probably older than a billion years, thought to represent continental "basement." Similar rock is exposed in the Tallulah Falls Dome and as the Corbin meta-granite near Lake Allatoona. At Pine Mountain's southwestern end, this ancient rock is folded with and covered by younger metasediments (schist, quartzite, marble) possibly representing metamorphosed Ridge and Valley rock. Pine Mountain's tectonic origin and internal structure are uncertain.
For more information on Pine Mountain, consult: