The product is a 1959 USGS California Map titled Radbruch, D., 1959, Former shoreline features along the east side of San Francisco Bay, California: U.S. Geological Survey IMAP 298, 1 map This geological map, part of the Miscellaneous Geologic Investigations Map I – 298 series, was authored by Dorothy H. Radbruch. It focuses on the geology of the shoreline in the East San Francisco Bay, Alameda County, California, providing valuable insights for engineering and geological purposes. This wall map, published by the USGS, is a valuable resource for those interested in the geology of California and the United States in general.