High Quality Content by WIKIPEDIA articles! USS Graylag (AM-364) was an Admirable-class minesweeper built for the U.S. Navy during World War II. She was built to clear minefields in offshore waters. Graylag, a steel-hulled fleet minesweeper, was launched by Willamette Iron and Steel Works, Astoria, Oregon, 4 December 1943; and commissioned 31 August 1945, Lt. S. M. Janney in command. After steaming to San Diego, California, 11 October, Graylag got underway 1 November for Pearl Harbor, where she arrived eight days later. The ship picked up passengers and returned to San Diego 29 December.