Ghosts of the Golden Gate.

The article looks at the shipwrecks the SS City of Rio de Janeiro and the SS City of Chester, located near the Golden Gate Bridge in San Francisco, California. Particular focus is given to high-resolution sonar imaging of the ships by the U.S. National Oceanic and Atmospheric Administration (NOAA) and the private companies Hibbard Inshore and Bay Marine Services. Other topics include discrimination against Chinese immigrants and remotely operated underwater vehicles (ROVs).