420-6 Green clay 435 Red silty clay, green streaks 436-8 Greenish gray silty clay, some carbonaceous matter. 455 Fine grained gray sandstone becoming silty downward 478 Interbedded greenish gray siltstone and silty claystone. 487-8 Carbonaceous siltstone and silty shale. with marine fossils 488-9 Coal BRUSH CREEK 491 Dark gray silty clay 498 Medium to fine grained light gray sandstone some intercalated siltstone 499-6 Dark gray silty clay 508 Dark gray silty clay with limey pellets 511 Light gray silty clay 519-6 Interbedded siltstone and sandstone 530 Green silty clay and claystone. Fragmental from 526-6 to 528 (CB16) 539-6 Green silty clay and claystone, red mottling top and bottom. 549 Green silty clay, calcite veinlets 554 Fine grained gray micaceous sandstone with intercalated siltstone and claystone 559 Coarse grained gray sandstone scattered pebbles (to 3mm diam) 563-6 Dark green to gray clay 565 Gray sandstone, intercalated siltstone & claystone 570-6 Dark green silty clay 572 Carbonaceous clay 575 Dark gray silty clay, sandy streaks 575-6 Carbonaceous clay, coaly streaks 592 Dark gray silty clay 594 Mottled gray semi-plastic to semi-flint clay, locally fragmental (Anal #1) (CB 17A) Irony in lower part. (CB 17B) 595 Carbonaceous clay. 3.