1. Lithostratigraphy of upper Ordovician strata exposed in Kentucky Author/Creator: Weir, Gordon W. 1922-2011. (Gordon Whitney) Publication/Creation: Alexandria, VA : For sale by the Distribution Branch, Text Products Section, U.S. Geological Survey Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 1151 A-G. Access & Availability: Loading
2. Borden Formation (Mississippian) in south and southeast-central Kentucky Author/Creator: Weir, Gordon W. 1922-2011. (Gordon Whitney) Publication/Creation: Washington : U.S. G.P.O., 1966 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1223-1224. Access & Availability: Loading
3. Clays Ferry Formation (Ordovician) : a new map unit in south-central Kentucky Author/Creator: Weir, Gordon W. 1922-2011. (Gordon Whitney) Publication/Creation: Washington : U.S. Govt. Print. Off, 1965 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1223-1224. Access & Availability: Loading
4. Calloway Creek limestone and Ashlock and Drakes Formations (Upper Ordovician) in south-central Kentucky Author/Creator: Weir, Gordon W. 1922-2011. (Gordon Whitney) Publication/Creation: Washington : U.S. Govt. Print. Off, 1965 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1223-1224. Access & Availability: Loading