Acknowledgments

The authors thank the captain and crew of the NOAA vessel S3002 for their work in collecting and processing bathymetry data. We also thank Barry Irwin, the captain of the RV Rafael, for his support in collecting sediment samples and bottom photography. The title-page graphic and remaining figures in this report were derived from the base and (or) data layers produced as part of this project and provided in the GIS Data Catalog section of this report. This report has benefited from critical reviews by Seth Ackerman, VeeAnn Cross, and Emily Himmelstoss (all of the USGS).