The waters just west of San Francisco's Golden Gate Bridge hide a graveyard of sunken ships. By some estimates, there are 300 wrecks in the Gulf of the Farallones National Marine Sanctuary and the Golden Gate National Recreation Area alone. But only a fraction of them have been seen by scientists. Marine archaeologists and researchers with the National Oceanic and Atmospheric Administration (NOAA) have set out to document those lost vessels. Over the course of a five-day survey that just ended yesterday (Sept. 15), the team discovered the sites of at least four wrecks: the 1910 SS Selja shipwreck, the...