Name/Title
S23.02.021Description
Close-up image of crag and tail glacial erosion effect striations on Columbus Limestone at Penry Quarry near Radnor in Delaware County, Ohio. Bedrock is from the Devonian Geologic Period. Photo was taken by Michael C. Hansen in 1991.
This slide image included in the USGS National Digital Catalog for NGGDPP Grant G15AP00115 in FY2015.Context
Erosion indents in limestone rock. Penry Quarry near Radnor in Delaware County, Ohio.