U.S. Coast Guard Cutter Maple crew members prepare to tie up alongside Canadian Coast Guard Ship Amundsen in the Arctic waters of Queen Maud Gulf, August 8, 2017. The Canadian Coast Guard crew provided fuel for the crew of U.S. Coast Guard Cutter Maple in support of the Maple's transit through the Northwest Passage to the Atlantic. (U.S. Coast Guard photo by Petty Officer 2nd Class Nate Littlejohn/Released)