Geologic image in the Kentucky Geological Survey data repository.Image Name: Under Sky Bridge Image Date: 10/21/2007 Category: photo_outcrop Source: Nuttall, Brandon Format: JPG Size (MB): 1.54 Pixel Dimensions: 1536 x 2048 Description: Red River Gorge area ('Nada loop'), view of underside of Sky Bridge showing liesegang (iron) banding.