PORTLAND, Maine (AP) — Appalachian Trail hikers are asked to avoid summiting Maine's tallest mountain Labor Day Weekend as the Penobscot Indian Nation's annual pilgrimage begins.

The Bangor Daily News reports that members of the Penobscot Nation will participate in their longstanding, 100-mile pilgrimage from Saturday through Monday. The ceremony begins at Indian Island and ends at Mt. Katahdin.

Baxter State Park has closed the Katahdin Stream Campground Saturday and Sunday for the ceremony.

The Appalachian Trail Conservancy has made the request in years past.

Appalachian Trail Conservancy Maine Program Manager Claire Polfus said that Mount Katahdin is not closed.

The Appalachian Trail is open for hikers who must summit Labor Day weekend. Such Appalachian Trail hikers can pass through Katahdin Stream Campground or stay at a satellite campground reserved for long-distance hikers.