089 Pound Gap where the base of the visible portion this road cut is the top the Lower Mississippian Sunbury Shale. Most of the photograph is of the Mississippian Grainger Formation, here composed of alternating relatively continuous to occasionally shallowly channeled beds of sand with uniform sharp bedding planes and shale; both lithologies vary in thickness and the sands often exhibit Bouma sequences suggesting deposition from turbidite currents that were active over a mid to outer fan setting. The lower portion of the formation is shale rich and probably from a deeper water setting and a more distal portion of the fan. The top of the photograph is marked by the overlying Lower Mississippian Newman Limestone Formation