@Pr
TRIASSIC AND PERMIAN ROCKS
sedimentary
siltstone, shale, sandstone
2.1.1.4
siltstone
shale
sandstone
Lower Permian
Upper Triassic
295
205
Red siltstone, shale, and sandstone. Includes various combinations of Nugget, Jelm, Popo Agie, Chugwater, Red Peak, Forelle, Satanka, and Goose Egg Fms near Wyoming border
ABW
@P
mixed seds