The Coast Guard Cutter Alder, homeported in Duluth, Minn., sits moored at Chicago's Navy Pier after transiting from Sault Ste. Marie, Mich., carrying more than 750 Christmas trees, Dec. 2, 2011. Alder's crew has assumed to role of Chicago's "Christmas Ship," bringing trees that different charity groups will distribute to Chicago-area families. U.S. Coast Guard photo by Petty Officer 3rd Class George Degener.