12, ss above 1st Glenczirn. < 1st sh? - locally sandy, to flinty bountite /like clay at base lower split 1st Glenczirn ss. 2nd Glenczirn sh. (see 11) 13 First Gleac, ss and ss ledge above coalescing, intervening clays thinned; upper one in and out as thin clazonal boundary. 14 Both clay beds (13) track out about here but can be traced by break in cliff and local thin flinty beds. 15 Glenczirn - Lytle disconformity, massive x lam to irrev bedded bn to yellow brn. ss on white fuzzile loc. augill. ss, stained orange, orange brn, pinks. 16. Clay bed-in mid Dzhols? , with thin double-bentonite near base. Goes over to west face hogback here. Bed here about 8' with upper 5 mostly augill. siltsy. Resume Alameda - Morrison hagback on AIN-50-21 and mapped - red lines w to e. -50-19 1. base Morrison - OK - ou ss 2. Morrison - Lytle contact - approximate, ou ss, red beds & vegetation - no clear cut separation 3. Lytle - Glenczirn discout. - sharp where exposed - good control except Neud 21