STRAITS OF MACKINAC - Crewmembers aboard the Coast Guard Cutter Hollyhock, homeported in Port Huron, Mich., pass supplies to the tug Erika Kobasic, homeported in Escanaba, Mich., near Mackinac Island, Jan. 25, 2012. The crews of the Hollyhock and the Erika Kobasic are participating in a project led by the Coast Guard's Research and Development Center, showcasing techniques for removing spilled oil from a frozen environment. U.S. Coast Guard photo by Petty Officer 1st Class Matthew Schofield.