Visitors read a sign at the summit of Cadillac Mountain in Acadia National Park in Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)

Visitors pose for photos at the summit of Cadillac Mountain in Acadia National Park in Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)

Sweetgrass grows among a variety of grasses in Bass Harbor Marsh in Acadia National Park on Mount Desert Island in Maine on Friday, July 10, 2026. (AP Photo/Jessie Wardarski)

Lydia Soctomah sits for a portrait with a handcrafted fancy basket made from ash bark and sweetgrass at the College of the Atlantic in Bar Harbor, Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)

Park visitors watch Lydia Soctomah, right, citizen of the Passamaquoddy Nation, weave an ash and sweetgrass basket at the Sieur de Monts Nature Center in Acadia National Park in Maine, as part of the cultural connections program hosted by both Acadia and the Abbe Museum, on Tuesday, July 1, 2026. (AP Photo/Jessie Wardarski)

A walkway winds through the Great Meadow Wetland at Acadia National Park on Mount Desert Island in Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)

Abbe Museum Executive Director Betsy Richards, citizen of the Cherokee Nation, looks at an outdated map of Mount Desert Island in Maine, home to Acadia National Park, hanging in a small private museum location being renovated within the park, on Tuesday, July 1, 2026. (AP Photo/Jessie Wardarski)

Visitors at the summit of Cadillac Mountain in Acadia National Park in Maine, on Tuesday, July 1, 2026. (AP Photo/Jessie Wardarski)