TY - RPRT TI - Surficial Geology of the Floor of Lake Mead (Arizona and Nevada) as Defined by Sidescan-Sonar Imagery, Lake-Floor Topography, and Post-Impoundment Sediment Thickness AU - D.C. Twichell AU - V.A. Cross PY - 2009 DO - 10.3133/ofr20091150 UR - https://pubs.usgs.gov/publication/ofr20091150 ID - ofr20091150 ER -