4.2 Shale, dk gray, hard, fissile. Porcellanite 0.1 thick starts 1.5 from top. Below this, some hard interbeds silt silt + silty clay. 1.9 Siltstone, loc. sandy, hard some shaly partings in lower half. Dk gray wools irreg lite gray lodes with Fe stain on joints & bedding surfaces. 3.8 Shale dk gray to black, clay fissile 2.0 Siltstone as in 1.9 above but more platy, shaly. 3.6 Interbedded dk gray shale high silt and hard beds siltstone, later increase downward. 1.5 Sandstone, silty, platy, with interbeds dk gray silty shale. 0.2 bl shale sits on unit below. 24.0 Sandstone, in hard tabular beds up to 2.5, with interbeds of black shale