Some worry the Trump administration may use efforts by entities outside the U.S. government to fill operational gaps at national parks to justify further shrinking federal management.By Jake BolsterCOLUMBIA FALLS, Mont.āGlacier National Parkās Going-to-the-Sun Road, completed in 1933, weaves past meandering streams, expansive valleys, stoic limestone peaks and receding glaciers. Jeff Mow, Glacierās former superintendent, knows the roadās spectacular vistas well, but this fall he used it to provide a glimpse into a much grimmer picture: how the federal government shutdown impacts national parks across the country.