TY - RPRT TI - Residual aeromagnetic map of the Danville area, Virginia and North Carolina AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1994 DO - 10.3133/ofr94219 UR - https://pubs.usgs.gov/publication/ofr94219 ID - ofr94219 ER -