Geologic image in the Kentucky Geological Survey data repository.Image Name: Image Date: 1/1/2011 Category: photo_outcrop Source: Potter, Paul Format: JPG Size (MB): 0.43 Pixel Dimensions: 2112 x 1470 Description: The contact between the base of the Upper Devonian Huron Member of the Ohio Shale and the Lower Silurian Crab Orchard Shale on I-64 between Exits 123 and 132.