LANCE CREEK AREA - Reconnaissance of localities Locality 102 Gunn Ranch, south Ant Hills, E1/2, sec.4, T.36 N., R.63 W., Niobrara County, Wyoming. Exposures in and around gulch with windmill; first gulch N. ranch, access through yard and pasture. Massive buff-worth unit and overlying tzbulzer x-lzm to cross bedded, sznd with shzle lzmince. Lower unit not exposed. The massive sznd coutzius Veniella and a spheriolz-like clam. The bryozoon conis zrd very rzra here - only one found, punky with Protoczuldz + ammonite frogs. At top of massive is discontinuous red-bwn weztu cone layer of lzrge (up to 8' long diam) cile. cones with phosphatic nodules on upper surface, fish bones + teeth + phosphatizd frogs. of Veniella, sphenodiscus and other inverts. This layer comes at sharp contact between the massive sand unit and the overlying lzminated + thin-bedded units. Locally bzszl thin beds zre incorporated in cone messes. Where cones absent some phosphatized stemkurus persist at contact. Thin-bedded unit has considerable silty to szndy slale in thin layers in bzszl 20' t. Could get section across contact but no good contact with lower unit or with Calgate. Best locality for unconf. between massive and thinbedded units. 40