TY - MAP ID - 137423164 TI - Cross sections of lower Paleozoic rocks in the Powder River Basin and adjacent areas, Wyoming, Montana, and South Dakota, plate 1 PY - 1993 PB - Washington (D.C.) U.S. Geological Survey DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:137423164 AB - ER -