Keith Meldahl is Professor of Geology and Oceanography at Mira Costa College in northern San Diego County.  He has authored three popular books, Hard Road West (University of Chicago Press, 2007), Rough-Hewn Land (University of California Press, 2011), and Surf, Sand, and Stone (University of California Press, 2015).  Keith earned his B.A. in geology from the University of Chicago (1983) and his M.Sc. (1986) and PhD (1990) in geology from the University of Arizona.  For fun, he plays guitar in assorted musical groups, enjoys body-surfing and camping, and spends much of his spare time exploring geology throughout the western US.