SEATTLE - The crew of the Coast Guard Cutter Henry Blake, home ported in Everett, Wash., transits the Puget Sound on a mission to maintain aids to navigation in the area on Aug. 22, 2011. The history of the Coast Guardâs aids to navigation mission reaches back to the beginning of the nation when lanterns were posted high enough on shore to guide ships along the coast. U.S. Coast Guard photo by Petty Officer 2nd Class Eric J. Chandler.
