TY - RPRT TI - Preliminary geologic map of the Battle Creek fault zone, Shasta and Tehama Counties, California AU - David S. Harwood AU - E. J. Helley AU - J. A. Barker AU - E. A. Griffin PY - 1980 DO - 10.3133/ofr80474 UR - https://pubs.usgs.gov/publication/ofr80474 ID - ofr80474 ER -