Geologic image in the Kentucky Geological Survey data repository.Image Name: Alluvial Valley, Montgomery County Image Date: 1/7/2007 Category: photo_scene Source: Carey, Dan Format: JPG Size (MB): 0.4 Pixel Dimensions: 3292 x 1396 Description: The broad alluvial valley along Slate Creek in Montgomery County is typical of watersheds with uplands underlain by shale, in this case the New Albany Shale. Photo by Dan Carey, Kentucky Geological Survey.