Virginia State Seal Virginia Department of Historic Resources

Trading Run Chert

Trading Run chert, Allegany County, Maryland.

Type Cherts

Collection Location:
Trading Run valley, north of Oldtown, Allegany County, Maryland. Sample obtained from colluvium on the west side of the valley. Unknown Devonian formation. Probably colluvium from the Helderberg formation exposed on the top of Warrior Mountain.

Light-colored (white, gray, tan, yellow, and pick), heavily weathered blocky and tabular float materials. Numerous bedding planes with marked iron staining limit utility.


Cultural Implications


Prepared By Ebright 1999

Updated: October 22, 2016