HOUGHTON, MICHIGAN: Welcome to FasterSkier’s on-location coverage of the United States National Cross-Country Ski Championships from Houghton, Michigan. This week, Houghton hosts the U.S. National Cross-Country Championships on the Michigan Technological University’s trails system. Today’s event was the Classic Sprints. Weather again played an outsized role in today’s proceedings as temperatures hovered around freezing all night. The overnight forecast varied from freezing rain, to rain, to rain mixed with snow, to straight snow. During ski...