Here lies the Blue Dolphin on 3-11-2012. A sad ending to a once nice boat.
Below is a Google Earth image from 8-25-2011. You can see the Blue Dolphin tied to the end of the dock. A few informative hotspots have been added.

So what is the mystery? Well, why does the Department of Ecology claim the vessel sank at Shannon Point? She obviously sank right where she has been tied up for a long time……about 200 yards west of the Anacortes terminal of the Guemes Ferry. Shannon Point is 2.3 NM to the west.