598-4 irregularly bedded fine siltstone. 600 Dark to carbonaceous claystone, streaks in upper foot. 607-4 Finely silty tan claystone 610-4 Dark grayish claystone 611-5 Dark gray to black shale, sandy streaks. 612 Boney coal 613-8 irregularly interbedded dark claystone and fine sandstone, 638-7 Fine to medium grained sandstone 652 Black, locally silty, shale. 660-7 Silty claystone grading to argillaceous siltstone 667 interbedded siltstone + fine sandstone 668-9 Silty gray shale. 679-9 irregularly bedded sandy siltstone and fine sandstone 679-11 Boney coal 686 Sandy siltstone and siltstone, 692 interbedded siltstone and fine sandstone 734-6 Medium and coarse grained sandstone. 736-6 Silty claystone + siltstone, 755 interbedded silty shale, and siltstones, dark gray to black. 2' silty tan claystone at base. 817-6 Medium and coarse sandstone zones of conglomerate, irregularly bedded ss with numerous partings 836 interbedded dark gray siltstone and sandstone. Latter predominates in lower half. 845 Greenish gray shale, claystone becoming silty downward. 849- Green gray siltstone, micaceous (biotite?) 854 Brownish, mottled, highly siliceous frequental claystone and silty claystone. Zones of siltstone in basal part and several zones somewhat layered in silty clay. 862. Gray to dark gray and black clay shale, plant 52