and thin beds of silty shale, which break up siltst ss into platy ledges or indentations in massive ledge. Both silt + ss show calcareous. Upper 3' shale more plentiful and siltst in less prominent ledges. L. 8.2 Argillaceous siltstone, soft, gray, irreg. bedded, with zones of silty dk gray shale (sample 10 part) M 3.4 Siltstone, argillaceous-argill, hard blocky fract., in thin beds some brown weath. Loc. Fe-(CO2) concretions. Bentonitic clay, greenish gray (sample 10 part) N 0.2 O 2.0 Argillaceous siltstone, shale, silty in basal part. (Sample 10 part) P 1.9 Siltstone, ledgy, as in M above with local Fe brown weath. cale. concretions Q 7.6 Siltstone, argillaceous, blocky to irreg. fract., some calc frag- ments, local lenses dense ledgy siltst in lower part. Somewhat more shaly in upper 4'. Scattered cale. concretions, brown weath. in zone in upper foot. R. 40.0 Siltstone, massive, argill. in lower 20', becoming harderst from 20-30. Upper 10' chiefly fine silty ss, that is resistant enough, though crumbly, to Note upper 10' of R shales out to 5 along slope 42