Sof Alcorn complete section can be pieced from Sundance - Mowry (see if Lovas chzt has it.) Contact is black sudy sh right on top calte ss with no "rusty beds" no evidence leeching. Cloverly is all cgl loc except for thin zone czrk clstn x sh between the 2 cals. Upper is calty Xbedded white sparkly ss, typical Lytle-like. Lower is very good cgl pigeon to chicken egg chert tcptzile pebbles. At Ohio Oil Co. well (Antelope flats G#1) drill in Spring Cr. area, Co. geologists show 3 ss separated by shaly beds in Dakota. (Bob Steed, Casper office, has this report - could probably get it if necessary.) 18