TY - RPRT TI - Preliminary aeromagnetic, gravity, and generalized geologic maps of the USGS basin and range-Colorado Plateau transit zone study area in southwestern Utah, southeastern Nevada, and northwestern Arizona (the "BARCO" project) AU - H. R. Blank AU - R.P. Kucks PY - 1989 DO - 10.3133/ofr89432 UR - https://pubs.usgs.gov/publication/ofr89432 ID - ofr89432 ER -