Geologic image in the Kentucky Geological Survey data repository.Image Name: Robinson Boulder Image Date: 1/1/2008 Category: photo_outcrop Source: Potter, Paul Format: TIF Size (MB): 5.65 Pixel Dimensions: 1772 x 1114 Description: Looking southeast at a three foot Precambrian biotite-granite boulder with an overprint Middle Ordovician age of 474 Ma embedded in the Cleveland Member of the Ohio Shale along Logan Hollow northeast of Morehead, Rowan Co., KY. This ice rafted boulder is named the Robinson Boulder after its discovery by M.J. Robinson in 2006.