Chuck Sutherland:
Historic flume downstream of Big Falls, Duck River, Old Stone Fort SP, Coffee County, Tennessee
Chuck Sutherland:
Geologic contact (Fort Payne Formation and Chattanooga Shale), Duck River, Old Stone Fort SP, Coffee County, Tennessee
Chuck Sutherland:
Fluorescein residue, Big Falls area, Duck River, Old Stone Fort SP, Coffee County, Tennessee 3
Chuck Sutherland:
Fluorescein residue, Big Falls area, Duck River, Old Stone Fort SP, Coffee County, Tennessee 2
Chuck Sutherland:
Fluorescein residue, Big Falls area, Duck River, Old Stone Fort SP, Coffee County, Tennessee 1
Chuck Sutherland:
Trace fossil burrows in Fort Payne Chert, Old Stone Fort SP, Coffee County, Tennessee
Chuck Sutherland:
Bluehole Falls, Duck River, Old Stone Fort SP, Coffee County, Tennessee