TY - RPRT TI - Map showing outcrops of Pre-Quaternary ash-flow tuffs and volcaniclastic rocks, Basin and Range Province, Utah AU - Kurt Roggensack AU - J. E. Jenness PY - 1984 DO - 10.3133/wri834122f UR - https://pubs.usgs.gov/publication/wri834122F ID - wri834122F ER -