Monday marks the 16th year since the Sept. 11, 2001, terror attacks on the United States. Following is a list of events to be held in the Portland area on Monday commemorating 9/11:

• The Summit Project living memorial will have a 9.4-mile campus hike, from the University of Southern Maine’s Portland campus to its Gorham campus, in commemoration of the Sept. 11 attacks. Each participant will carry a stone chosen by the family of a fallen service member and share his or her story. The opening ceremony will be held at 7:30 a.m. at the flagpole on the USM Portland campus and the step-off will be at 8 a.m. The closing ceremony will be held at 1 p.m. at the President’s House on the Gorham campus, 37 College Ave.

A table containing the Walt Whitman poem "On the Beach at Night" is part of a memorial being dedicated in Hempstead, N.Y., Monday. The memorial also includes names of people who died of illnesses from working at Ground Zero. Associated Press/ Frank Eltman

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• New York town’s 9/11 memorial to include names of sickened responders

• The city of Portland’s fire and police departments will commemorate the day with a wreath-laying ceremony at Fort Allen Park at 8 a.m.

• The Falmouth American Legion Post 164 will host a 9/11 remembrance ceremony at 11 a.m. at 65 Depot Road, Falmouth.

• The Cumberland County Sheriff’s Office will unveil a monument that includes a piece of steel from the World Trade Center at a memorial ceremony at 6 p.m. Monday at the sheriff’s office, 50 County Way, Portland.