Allegheny Generalized - Key horizons + zones Davis rider Davis coal BOLIVAR clay impure Upper Freeport ls. " " ss Barrelville coal Lower Freeport ls. Montell ss " " rider coal) " " coal) Little Montell coal Mt Savage iron ore HARDMAN ("FURNACE") fire clay Flint + plastic Piney Mountain coal Westernport ss Luke coal LUKE clay impure Ellerslie ss " " coal ELLERSLIE fire clay Flint + plastic MT Savage ss " " rider coal Upper Mt Savage coal MT SAVAGE fire clay Flint + plastic Lower Mt Savage coal)