TY - RPRT TI - Lithology and stratigraphy of a drill core from the vicinity of the Hack Canyon mines, Mohave County, northern Arizona AU - B. S. Van Gosen AU - K. J. Wenrich PY - 1987 DO - 10.3133/ofr87144 UR - https://pubs.usgs.gov/publication/ofr87144 ID - ofr87144 ER -