Fireman Aaron Osborne, of the Coast Guard Cutter Elderberry’s engineering department, and Petty Officer 2nd Class Davis Alexander, a boatswain’s mate aboard the Elderberry, drop a buoy into the Gastineau Channel near Juneau, Alaska, April 1, 2015. The buoy is one of the 18 that mark the Mendenhall River Bar. (U.S. Coast Guard photo by Petty Officer 2nd Class Grant DeVuyst)