506-6 Interbedded green siltstone with zones of calcereous sandstone. 509-6 Interbedded fragmental sandy claystone and silty clay. 524-8 Interbedded greenish gray siltstone + shaley siltstone, zones fine SS in upper half. 537-4 Gray silty claystone. 558-6 Green to gray siltstone and shaly siltston minor silty claystone in upper part. Lower 4' with much interbedded fine SS. 567-4 Gray to dark gray shale. 569-4 Dark gray to black clay with numerous coaly partings in upper part 571-4 Black shale 577-9 drop, interbedded dark gray siltstone and white sandstone. 590-2 Dark gray shale, few sandy streaks 594-6 Coal Upper Freeport 603-10 Argillaceous limestone + limey claystone 607-10 Fragmental silty claystone. 617-0 Light to dark gray, tough, silty, semiplastic clay 621-8 GRAY semiplastic clay zones argillaceous limestone + ironstone concretions- 631-2 Gray silty claystone grading to siltstone. Sandy zones in basal 2' 652-10 Medium grained quartzitic, stylolitic