TY - RPRT TI - Bouguer gravity, aeromagnetic, and generalized geologic map of East Helena and Canyon Ferry quadrangles and part of the Diamond City quadrangle, Lewis and Clark, Broadwater, and Jefferson Counties, Montana AU - W. E. Davis AU - W. T. Kinoshita AU - H.W. Smedes PY - 1963 DO - 10.3133/gp444 UR - https://pubs.usgs.gov/publication/gp444 ID - gp444 ER -