591-6 Gray silty semiplastic clay grading downward to fragmental claystone with minor semi-flint. (CB 23A) 597 Fragmental claystone. Light brown fragments of claystone and vein-like masses of soapy flint clay in matrix of sideritic material (CB 23B) 599-6 Gray silty clay 619-6 Fine grained sandstone, intercalated siltstone 635-9 Coarse to conglomeratic (below 627) sandstone. 637-6 Conglomerate (pebbles to 10mm) 639-6 Interbedded siltstone, sandstone, and conglomerate 645-6 Medium to coarse grained sandstone 646-6 Carbonaceous shale and bone. 649-1 Dark gray siltstone and sandstone, streaks of conglomerate 652-3 Coal UPPER KITTANNING 657 Dark gray silty calcareous clay 660 Silty gray clay and claystone, limy stringers. 665 Interbedded siltstone, sandstone, claystone 669-6 Silty gray shaly micaceous clay 670 Carbonaceous clay 674 Gray silty clay 675 Carbonaceous silty clay 681-6 Gray silty shaley clay, sandy partings 684 Black micaceous shale 686 Interbedded siltstone and sandstone 688-5, Black shale, plant remains 689-9 1/2 Coal 705-8 Interbedded siltstone, silty claystone, and fine sandstone. 708-2 1/2 Coal & bone 713-2 Dark gray silty clay 717-1 Black shale, scattered sand grains in lower part 717-5 Bone 718-8 Claystone 720-4 Coal and bone 730 Dark gray silty to sandy clay