GLACIER NATIONAL PARK, Mont. — Interior Secretary Sally Jewell hiked to see the stunning view from the Hidden Lake Overlook in Glacier National Park to celebrate the 100th anniversary of the National Park Service.

During Thursday’s visit, Jewell also met with scientists to learn more about how climate change could cause the glaciers to disappear there as soon as 2030. Jewell says that climate change is a concern for the future of other national parks from Alaska to the Florida Everglades.

She’s also attending the 100th anniversary celebration and concert featuring Emmylou Harris and John Prine at the Roosevelt Arch in Yellowstone National Park during her visit.