Conoco limestone outcrop

Rock hammer posted next to outcrop of Conoco limestone

Detailed Description

A rock hammer posed next to an outcrop of the Conococheague Formation, an Appalachian bedrock unit of Cambrian age. Photo is from Circular 1360, Water Quality of Principal Aquifers of the United States, 1991-2010.


Image Dimensions: 3436 x 3436

Date Taken:

Location Taken: US