Below the dam that formed Carter’s Lake, you will find a view of the Carter’s Dam Fault.  At this fault, the Western Blue Ridge rock meet the rocks of the Great Valley.  The rocks of the valley rocks are sedimentary while the Blue Ridge rocks are metamorphic.  Approximately 300 million years ago, during the formation of Pangea, Precambrian metamorphic rocks were pushed over the younger sediment (Cambrian to Pennsylvanian).  Originally, this was thought to be part of one fault family, but it is now thought that two faults intersect in this area.  The Carter’s Dam Fault runs north from Cartersville into Tennessee.