Scenes from Glacier National Park as the National Park Service celebrates its centennial on Aug. 25, 2016.
Greg Lindstrom
Department of the Interior Secretary Sally Jewell and Glacier National Park Superintendent Jeff Mow discuss climate change as the National Park Service celebrates its centennial on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
USGS research ecologist Dan Fagre, left, shows Department of the Interior Secretary Sally Jewell an image of Clemens Glacier, taken in 1914, during a hike to the Hidden Lake overlook as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Department of the Interior Secretary Sally Jewell hikes the boardwalk to the Hidden Lake overlook as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Department of the Interior Secretary Sally Jewell hikes the boardwalk to the Hidden Lake overlook with Blackfeet Tribal Council Chairman Harry Barnes as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
The National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Department of the Interior Secretary Sally Jewell greets Gracie, a border collie trained to deter wildlife from the Logan Pass parking lot, as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Blackfeet Tribal Council Chairman Harry Barnes laughs while chatting with Department of the Interior Secretary Sally Jewell as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Department of the Interior Secretary Sally Jewell hikes the boardwalk to the Hidden Lake overlook as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Department of the Interior Secretary Sally Jewell signs autographs as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Department of the Interior Secretary Sally Jewell enjoys a Red Bus tour as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
U.S. Sen. Steve Daines cheers with a group during an Instameet to celebrate the National Park Service centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
U.S. Sen. Steve Daines Snapchats with a pair of mountain goat mascots while celebrating the National Park Service centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
U.S. Sen. Steve Daines, left, gets editing advice from adventure photographer Chris Burkard, during an Instameet in Apgar as the National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Glacier National Park Superintendent Jeff Mow laughs with visitors along the boardwalk near Logan Pass. Beacon file photo
Glacier National Park Superintendent Jeff Mow, pictured along the boardwalk near Logan Pass. The National Park Service celebrates its centennial in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Stacks of rocks along the shore of Lake McDonald in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Water pours over rocks along Avalanche Creek. Beacon file photo
A photographer snaps a picture along Avalanche Creek in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
Lake McDonald Lodge in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
A historic Red Bus parked in front of the Lake McDonald Lodge in Glacier National Park on Aug. 25, 2016. Greg Lindstrom | Flathead Beacon
