TY - RPRT TI - Geologic map of the northwest part of the San Francisco Volcanic Field, north-central Arizona AU - E.W. Wolfe AU - C. G. Newhall AU - G. E. Ulrich PY - 1987 DO - 10.3133/mf1957 UR - https://pubs.usgs.gov/publication/mf1957 ID - mf1957 ER -