While not specific to tailings, this resource includes valuable knowledge for tailings engineers. Proceedings of Geotechnical Earthquake Engineering and Soil Dynamics IV, held in Sacramento, California, May 18-22, 2008. Sponsored by the Geo-Institute of ASCE. This Geotechnical Special Publication (GSP 181) contains 234 papers covering topics in soil dynamics and geotechnical earthquake engineering. This volume includes papers on these topics: engineering seismology, dynamics material properties, geophysical methods, SASW benchmarking, site response, liquefaction, ground improvement, embankment dams, tailings dams, landfills, levees, lifelines and networks, mapping and zoning, NEESR research, numerical modeling, piers and wharves, retaining structures, foundation dynamics, soil-structure interaction, stability of natural slopes, and surface fault rupture.