TY - GEN A2 - Coe, Jeffrey A. A2 - United States. Department of Energy AU - Geological Survey (U.S.) CN - I 19.91:I-2590 CY - Reston, Va.? LA - English PB - [The Survey] PP - Reston, Va.? PY - 1997 TI - Geologic map of the north ramp of the exploratory studies facility at Yucca Mountain, Nevada, stations 3+60 to 4+25 meters ER -