Rock Type: Sandy shale
Formation: Kanawha
Interval: Coalburg seam
Age: Middle Pennsylvanian Period, approx. 307 million years.
Location: Nicholas County, West Virginia; Ramp Run Surface
Mine #1, located about 12 miles north of Summersville, West Virginia.
Turn west off route 19 north of Summersville on Spruce Run Road
.