8611 8/11/86 800 m N of The Jct of Lane 5 & Road 7 NE of Powell WY. Indurated ledges of Ferrymean fgy Sr. SS in a predominately brownish tan weathering finer grained sequence of brownish grey mudst > sh Shales also med grey 1 ft Lignite encountered between 2 SS ledges. This interval is too sandy (w ledgy ss) to be pure Lebo Ombri looks like Lebo + FLUVIAL THAT occurs toward top of section on W side of polecat bench Some rare siderite cones as in Lebo