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

Volunteers carry soil to the summit of Sargent Mountain while participating in the "Save Our Summits" restoration program through Friends of Acadia at Acadia National Park in Maine, on Friday, July 10, 2026. (AP Photo/Jessie Wardarski)

Kids play on a beach on Mount Desert Island, home to Acadia National Park in Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)

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

Members of a Penobscot drum circle perform at the Dawnland Festival held at the College of the Atlantic in Bar Harbor, Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)

A family sings with a drum circle at the Dawnland Festival of Arts and Ideas, hosted by the Abbe Museum, at the College of the Atlantic in Bar Harbor, Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)

Lydia Soctomah's daughter holds a present gifted to her at the Abbe Museum's Dawnland Festival of Arts and Ideas held at the College of the Atlantic in Bar Harbor, Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)

Jennifer Neptune, citizen of the Penobscot Nation, holds a bundle of sweetgrass, known in Wabanaki creation stories as the hair of Mother Earth, at the Dawnland Festival in Bar Harbor, Maine, on Saturday, July 11, 2026. (AP Photo/Jessie Wardarski)