This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
ncgs usgs monochrome North Carolina Geological Survey ampquotEconomic Papers No. The Mining Industry in North Carolina in ampquot by Joseph Hyde Pratt Plate II facing p. . digital.ncdcr.gov economicpapersunsea North Carolina Geological Survey quotEconomic Papers No. The Mining Industry in North Carolina in quot by Joseph Hyde