TY - RPRT TI - Age, distribution, and formation of late cenozoic paleovalleys of the lower Colorado River and their relation to river aggradation and degradation AU - K. A. Howard AU - S.C. Lundstrom AU - D.V. Malmon AU - S.J. Hook PY - 2008 DO - 10.1130/2008.2439(18) UR - https://pubs.usgs.gov/publication/70035645 ID - 70035645 ER -